TS EAMCET 2020 9th September Evening Shift
Browse the complete Chemistry, Mathematics, and Physics question set from the TS EAMCET 2020 9th September Evening Shift paper, question by question. Each question shows a quick preview so you can jump straight to the topic or subject you want to revise. Click through to attempt the full question in practice mode, or head back to the paper-wise list to download the entire shift as a PDF.
This paper has 160 questions in total - 66 easy (41%), 65 moderate (41%) and 29 tough (18%). That's an easier-than-usual mix for this exam - aim to clear it quickly and save time for the harder papers. By subject: Mathematics 31% easy, 44% moderate, 25% tough; Chemistry 45% easy, 43% moderate, 13% tough; Physics 57% easy, 33% moderate, 10% tough.
Chemistry questions were spread across 28 chapters, with Coordination Compounds (3), Hydrocarbons (3), and p Block Elements (Group 15, 16, 17 & 18) (3) carrying the most weight. Mathematics questions were spread across 30 chapters, with Circle (5), Indefinite Integration (5), and Probability (5) carrying the most weight. Physics questions were spread across 26 chapters, with Magnetic Effects of Current (4), Motion In Two Dimensions (3), and Center of Mass Momentum and Collision (2) carrying the most weight.
Chemistry
- 1Which sets of the -orbitals are directly oriented towards the ligands in octahedral coordination compounds?09 Sep, 2020 (E)Crystal Field Theory
- 2What is the total number of electrons present in one mole of ethane?09 Sep, 2020 (E)Mole concept
- 3Which of the following atoms is the most electronegative?09 Sep, 2020 (E)Periodic properties
- 4What is the effect of lanthanoid contraction in lanthanoid series of elements with increasing atomic number?09 Sep, 2020 (E)F-Block elements
- 5Find out the hybridisations of and labelled carbon atoms in the given molecule09 Sep, 2020 (E)Hybridisation and VSEPR Theory
- 6Increasing order of dipole moment of following compounds.09 Sep, 2020 (E)Dipole moment
- 7The rates of diffusion of and are in the following order09 Sep, 2020 (E)Mixture of gases
- 8The mass percentage composition of dry air at the sea level is approximately , . If the total pressure is atm, calculate the partial pressur09 Sep, 2020 (E)Mixture of gases
- 9How many grams of is needed to get 1 gram of copper? Atomic mass, )09 Sep, 2020 (E)Quantitative measures in chemical equations
- 10Which of the following statements is not true about atomic mass?09 Sep, 2020 (E)Atomic Mass and Atomic Size
- 11Which of the following is not an extensive property?09 Sep, 2020 (E)System and surrounding
- 12If the equilibrium constant for the reaction, is 64 at , then the equilibrium constant for the reaction at the same temperature is09 Sep, 2020 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
- 13What is the of a solution of ?09 Sep, 2020 (E)PH of solutions
- 14Match the following methods for treating hardness of water with their corresponding reagents used. {array}{|c|c|c|} List-I & & List II \\ A.09 Sep, 2020 (E)Preparation and Properties of Water
- 15The product in the following reaction sequence is09 Sep, 2020 (E)Sulphur and Its Compounds
- 16Hybridisation of boron in diborane is09 Sep, 2020 (E)Boron and Its Compounds
- 17Which one of the following statements about allotropes of carbon is incorrect?09 Sep, 2020 (E)Carbon and Its Compounds
- 18Which among the following is not the components of photochemical smog?09 Sep, 2020 (E)Air Pollution
- 19How many geometrical isomers are possible for the compound with molecular formula09 Sep, 2020 (E)Isomerism of Organic Compounds
- 202-bromopentane is heated with potassium ethoxide in ethanol. The major product is09 Sep, 2020 (E)Preparation and Properties of Monohalides
- 21Reaction of 2-methylbuta-1, 3-diene with and , gives09 Sep, 2020 (E)Reactions of alkenes
- 22If the distance between and ions in sodium chloride crystal is ' ' . The length of the edge of the unit cell will be09 Sep, 2020 (E)Cubic system
- 23Correct order of osmotic pressure of the following solutions is (i) of glucose (ii) of (iii) of glucose (iv) of09 Sep, 2020 (E)Colligative Properties and Abnormal Molecular Masses
- 24The osmotic pressure of monobasic acid of at is09 Sep, 2020 (E)Colligative Properties and Abnormal Molecular Masses
- 25Which one of the following has the highest molar conductivity?09 Sep, 2020 (E)Conductance and Conductivity
- 26For a reaction, , the average energies of and are 30 and respectively. Energy of the activation for the backward reaction is . The energy of09 Sep, 2020 (E)Arrhenius theory
- 27Which of the following reaction is auto catalytic?09 Sep, 2020 (E)Catalysis and Theories of Catalysis
- 28Why iron pyrite is not the ideal choice of ore for the extraction of iron?09 Sep, 2020 (E)Minerals and ores
- 29Mixture of concentrated and made in ratio contains09 Sep, 2020 (E)Nitrogen and Its Compounds
- 30In the following reaction, products and respectively, are09 Sep, 2020 (E)Phosphorus and Its Compounds
- 31In the octahedral crystal field, the correct order of splitting in complexes for and is09 Sep, 2020 (E)Crystal Field Theory
- 32The coordination number and oxidation state of in are respectively09 Sep, 2020 (E)Terminology of coordination compounds
- 33Match the following: {array}{lll} {1}{c}{ List-I } & {1}{c}{ List II } \\ A. Natural rubber & I. & Free radical polymerisation \\ B. PVC & I09 Sep, 2020 (E)Preparation and Properties of Polymers
- 34Starch, when boiled with dilute sulphuric acid under high pressure, gives compound . On prolonged heating with hydroiodic acid, gives compou09 Sep, 2020 (E)Preparation and Reactions of Glucose
- 35The dipeptide given below is used as:09 Sep, 2020 (E)Artificial Sweetning Agents and Food Preservatives
- 36Which one among the following will undergoes faster reaction?09 Sep, 2020 (E)Preparation and Properties of Monohalides
- 37Major product in the following reaction sequence is09 Sep, 2020 (E)Reactions of aromatic compounds
- 38Among the following reagents, which one can converts ester into aldehyde?09 Sep, 2020 (E)Method of preparation for Aldehydes
- 39The correct set of reagents which convert acetylene to but-2-enal are09 Sep, 2020 (E)Properties and Preparation of Alkenes
- 40Which one among the following statements is true?09 Sep, 2020 (E)Preparation and Properties of Amines
Mathematics
- 1The function defined by is09 Sep, 2020 (E)Types of Function (Mapping)
- 2The set of values of such that defined by is onto is09 Sep, 2020 (E)Principal Value and Basics
- 3The expression for which satisfies and , from the following is09 Sep, 2020 (E)Summation of Series
- 4Let be matrices such that and is a null matrix. Then,09 Sep, 2020 (E)Product of Matrices
- 5If the system of equations is inconsistent, then09 Sep, 2020 (E)Product of Matrices
- 6For the system of linear equations the incorrect option among the following statements is09 Sep, 2020 (E)System of Linear Equations
- 7Let and the roots of the equation be complex. If the origin, and represent the vertices of an equilateral triangle on the Argand plane, then09 Sep, 2020 (E)Geometry of Complex Number
- 8Assertion (A) If the arguments of and are and respectively, then is . Reason (R) For any complex number , The correct option among the follo09 Sep, 2020 (E)Conjugate, modulus and argument
- 9If is a complex cube root of unity, then09 Sep, 2020 (E)Cube Root of Unity
- 10Preview not available - open to view this question.09 Sep, 2020 (E)Polar and Euler Form
- 11The curves and intersect the -axis at the points . If be such that , then the sum of all possible values of and is09 Sep, 2020 (E)Relation between Roots and Coefficients
- 12If takes real values for all real values of then lies in the interval09 Sep, 2020 (E)Range of Quadratic Function
- 13If are the roots of the equation and , then09 Sep, 2020 (E)Number of Solutions
- 14If the roots of are diminished by or , then the equation with the diminished roots does not contain term. Then09 Sep, 2020 (E)Relation between Roots and Coefficients
- 15Five boys and five girls are writing an examination in a hall in which 5 benches are arranged in a row and only two students are to be seate09 Sep, 2020 (E)Arrangement under Constraint
- 16Let denote the number of ways of selecting at least one ball from a bag containing 3 identical red balls, 4 identical blue balls and 5 ident09 Sep, 2020 (E)Combination
- 17For , if the coefficient of and the constant term in the expansion of in powers of are and respectively, then09 Sep, 2020 (E)Terms of Binomial Expansion
- 18The number of irrational terms in the expansion of is09 Sep, 2020 (E)Terms of Binomial Expansion
- 19If . Then09 Sep, 2020 (E)Integration using Partial Fraction
- 20If is a root of the equation , for , then09 Sep, 2020 (E)Sum and Difference & Multiple angle Formula
- 21If and , then09 Sep, 2020 (E)Solving Trigonometric Equation
- 22If , then09 Sep, 2020 (E)Transformation Formulas
- 23The number of real roots of the equation in the interval09 Sep, 2020 (E)Basic
- 24Consider the statements (I) If , then (II) Then the correct option among the following is09 Sep, 2020 (E)Converting one Inverse T function to other Inverse T
- 25If , then09 Sep, 2020 (E)Sum and Difference & Multiple angle Formula
- 26In , if and then09 Sep, 2020 (E)Cosine Rule and Projection Formula
- 27If is a non isosceles triangle and , then09 Sep, 2020 (E)Sine Rule and its application
- 28In any triangle,09 Sep, 2020 (E)Napiers Analogy, Area of Triangle & Half angle Formulae
- 29In , the points divide in the ratio , respectively and the point divides in the ratio . If , then09 Sep, 2020 (E)Napiers Analogy, Area of Triangle & Half angle Formulae
- 30If and are the vertices of a triangle, then a vector representing the median of the triangle through is09 Sep, 2020 (E)Algebra of Vectors
- 31If the shortest distance between the lines and is equivalent to projection of on then a possible vector is09 Sep, 2020 (E)Line in Space
- 32The vector equation of the plane containing the lines and is09 Sep, 2020 (E)Plane in Space
- 33Let and . If is unit vector such that is maximum, then09 Sep, 2020 (E)Scalar Triple Product
- 34The shortest distance between the skew lines and is09 Sep, 2020 (E)Line in Space
- 35The mean deviation from the arithmetic mean of the discrete data is09 Sep, 2020 (E)Relation Between Variance and Mean Deviation
- 36The variance of the following frequency distribution is {array}{cccccc} Class Interval & 0-6 & 6-12 & 12-18 & 18-24 & 24-30 \\ Frequency & 109 Sep, 2020 (E)Relation Between Variance and Mean Deviation
- 37If are three events of a sample space such that and then which of the following is correct?09 Sep, 2020 (E)Total Probability
- 38and are two independent events of a random experiment with and . Then match the items of List-1 with those of List-II. The correct match is09 Sep, 2020 (E)Independent Events
- 39If and are two events of the sample space such that and , then09 Sep, 2020 (E)Conditional Probability and Multiplication Theorem
- 40A random experiment is conducted five times. If the number of successes of the experiment follows binomial distribution such that the differ09 Sep, 2020 (E)Random Variable and its Probability Distribution
- 41If a random variable follows the Poisson distribution with variance 3 , then is maximum, when09 Sep, 2020 (E)Random Variable and its Probability Distribution
- 42For a real variable , consider the points in the Cartesian plane. If and represent respectively the arithmetic mean of -coordinates and the 09 Sep, 2020 (E)Means
- 43By shifting the origin to the point and then rotating the coordinate axes through an angle in the counter clockwise direction, if the equati09 Sep, 2020 (E)Coordinate System
- 44A straight line passing through the point and having slope meets the lines and respectively at the points and C. If , then the slope of the 09 Sep, 2020 (E)Basic Forms of Straight Line
- 45The equations of the sides and of a are respectively , . If and are the points on the line passing through such that , then09 Sep, 2020 (E)Coordinate System
- 46Let be the vertices of . Let be the circum-centre, be the orthocentre and be the incentre of the . Then09 Sep, 2020 (E)Coordinate System
- 47If one of the pair of lines is perpendicular to one of the lines represented by , then twice the absolute difference of such possible values09 Sep, 2020 (E)Angle between lines
- 48The difference of the tangents of the angles which the lines make with the -axis is09 Sep, 2020 (E)Angle between lines
- 49If and are points on a circle and the chord subtends an angle at a point on , then the equation of such a circle is09 Sep, 2020 (E)Chord of Contact
- 50The mid-point of the chord of the circle drawn parallel to the tangent at and at a distance of one unit from the tangent is09 Sep, 2020 (E)Chord with given Middle Point
- 51If the angle between the pair of tangents drawn to the circle from is , then09 Sep, 2020 (E)Pair of Tangents
- 52and if are centres of the two circles having only two common tangents and , then which of the following is correct09 Sep, 2020 (E)Common Tangents
- 53Let and be two circles. The centre of a circle of radius and having same radical axes with either of or is09 Sep, 2020 (E)Radical axis and centre
- 54If is a common tangent to the parabola and the circle then the product of the slopes of such common tangents is09 Sep, 2020 (E)Common Tangent
- 55If a normal to the parabola at cuts the parabola again at , then the equation of the tangent at is09 Sep, 2020 (E)Normal to Parabola
- 56For , the shortest distance from a point on the ellipse to one of its directrix is09 Sep, 2020 (E)Normal to ellipse
- 57A tangent drawn at a point on the ellipse cuts the -axis at point . If be the image of with respect to the line , then the circle with as it09 Sep, 2020 (E)Tangent to ellipse
- 58Let and be two points such that on the hyperbola . If is the point of intersection of the normals at and , then09 Sep, 2020 (E)Normal to hyperbola
- 59Let be a tetrahedron in which the coordinates of each of its vertices are in arithmetic progression. If the centroid of the tetrahedron is t09 Sep, 2020 (E)Coordinate System
- 60The angle between the lines whose direction ratios satisfy the equations and is09 Sep, 2020 (E)Direction Cosines and Direction Ratios
- 61A plane is passing through the points and . If the plane makes angle and with the and -coordinate planes respectively, then09 Sep, 2020 (E)Plane in Space
- 62Preview not available - open to view this question.09 Sep, 2020 (E)Trigonometric and Inverse Trigonometric limits
- 63If , then at is09 Sep, 2020 (E)Continuity
- 64If and , then09 Sep, 2020 (E)Functional Equation
- 65If , then09 Sep, 2020 (E)Logarithmic differentiation
- 66If , then09 Sep, 2020 (E)Derivative of f(x) wrt g(x)
- 67The perpendicular distance from the origin to the normal drawn at any point on the curve is09 Sep, 2020 (E)Tangent Normal
- 68If the semi vertical angle of a cone is and its height is , then the approximate value of its curved surface area (in sq. ) is09 Sep, 2020 (E)Rate Measure Error and Approximation
- 69If the Rolle's theorem holds for the function , in , and , then09 Sep, 2020 (E)Mean Value Theorem
- 70The minimum value of the function , when is09 Sep, 2020 (E)Maxima Minima
- 71If , then09 Sep, 2020 (E)Fundamental of Indefinite Integration
- 72If then09 Sep, 2020 (E)Integration by Substitution
- 73If , then09 Sep, 2020 (E)Integration by Substitution
- 74If , then the ordered pair09 Sep, 2020 (E)Miscellaneous Forms
- 75If , then09 Sep, 2020 (E)Properties of Definite Integration
- 76Preview not available - open to view this question.09 Sep, 2020 (E)Properties of Definite Integration
- 77The area (in square units) bounded by the curves and is09 Sep, 2020 (E)Area bounded by two curves
- 78The differential equation of which is a solution, is09 Sep, 2020 (E)Formation of Differential Equation
- 79The general solution of the differential equation is09 Sep, 2020 (E)Linear Differential Equation
- 80If the solution of the differential equation subject to the condition is and has an extreme value at , then09 Sep, 2020 (E)Applications of DE
Physics
- 1The dominant force experienced by an electron moving in a wire is09 Sep, 2020 (E)Newton's laws of motion
- 2If absolute error is for a measured length of . What is the percentage error?09 Sep, 2020 (E)Errors of Measurement
- 3The position of an object moving along -axis is given by , where and are constants with appropriate dimensions and is time in seconds. The a09 Sep, 2020 (E)Rest and Motion
- 4Two buses and are moving in opposite direction. Now if the first bus moves towards east with a speed of and bus moves towards west with a sp09 Sep, 2020 (E)Relative Motion
- 5A projectile is thrown into air with velocity at an angle with the horizontal. After what time its direction of motion is perpendicular to i09 Sep, 2020 (E)Projectile motion
- 6A particle is projected from the ground with some initial velocity making an angle of with the horizontal. If it reaches a height of above t09 Sep, 2020 (E)Projectile motion
- 7For a particle executing uniform circular motion09 Sep, 2020 (E)Uniform Circular Motion
- 8In the pulley system, the mass of ball is 1.2 times greater than the mass of the rod. The length of the rod is . The ball is set on the same09 Sep, 2020 (E)Equilibrium of Forces
- 9A particle having kinetic energy is projected at with the horizontal. The kinetic energy at the highest point is09 Sep, 2020 (E)Energy
- 10A bullet of mass is moving with speed hits a sand bag of mass . If the speed of the bullet after passing the sand bag is , then the height u09 Sep, 2020 (E)momentum
- 11From a uniform circular disc of radius (its centre of mass is at ) a circular portion of radius is removed such that the shift in centre of 09 Sep, 2020 (E)Centre of mass of continuous mass distribution
- 12A ball of mass released from the top of an inclined plane describes a circular motion of radius in the vertical plane upon reaching the bott09 Sep, 2020 (E)Circular motion
- 13A small sphere of radius is placed as a concave surface of radius of curvature a little away from the centre. When the sphere is released, i09 Sep, 2020 (E)Applications of SHM
- 14Find the acceleration of our galaxy, due to the nearest comparably sized galaxy. The approximate masses of each galaxy is solar mass and the09 Sep, 2020 (E)Newton’s Law of Gravitation
- 15The average depth of an oil well is . If the bulk modulus of oil is and the density of oil is . The fractional compression at the bottom of 09 Sep, 2020 (E)Bulk Modulus
- 16Consider a steady flow of oil in a pipeline. The cross-sectional radius of the pipeline decreases gradually as , where and is the distance f09 Sep, 2020 (E)Viscosity
- 17Newton's law of cooling is a special case of09 Sep, 2020 (E)Radiation
- 18How much thermal energy is required to change a ice cube from solid at to steam at ? [Assume, latent heat of fusion for water , specific hea09 Sep, 2020 (E)Calorimetry
- 19In the Carnot engine when the heat is taken from the source, then the temperature of the source09 Sep, 2020 (E)Heat Engine, Refrigerator and Second Law of Thermodynamics
- 20In an ideal gas, if the masses of all molecules are doubled and their speeds are halved, then the ratio of initial and final pressures of th09 Sep, 2020 (E)Pressure and Energy of gas
- 21An engine sounding a whistle of frequency is receding from the stationary observer at . What is the apparent frequency of the observer? The 09 Sep, 2020 (E)Doppler’s Effect
- 22An object is placed at a certain distance left to a convex lens of focal length . Find the distance of the object if the image obtained is m09 Sep, 2020 (E)Lens Formula, Refraction of light from curved surface
- 23Which of the following statement is incorrect?09 Sep, 2020 (E)Prism and Dispersion of Light
- 24Choose the incorrect statement.09 Sep, 2020 (E)Youngs Double Slit Experiment
- 25The electrostatic potential inside a charged spherical ball is given by , where is the distance from the centre and are constant. Then, the 09 Sep, 2020 (E)Electric Potential and Potential Energy
- 26A thin metallic spherical shell of radius contains a charge on its surface. A point charge is placed at the centre of shell and another char09 Sep, 2020 (E)Electric Field and Electric Field Lines
- 27There are four bulbs of power , and 1000W. Among these whose filament has high resistance? (Assuming, same voltage source)09 Sep, 2020 (E)Electric Power and Heating Effect of Current
- 28In a meter bridge two gaps in the metallic strip are connected by and resistors. What should be the value of shunt that needs to be added to09 Sep, 2020 (E)Wheatstone Bridge
- 29A current flows in a straight wire bent in the shape of a quarter ring of radius as shown in figure. The magnetic field induction at point i09 Sep, 2020 (E)Magnetic Field
- 30A particle of mass and charge is moving in a cyclotron with magnetic field . The frequency of the circular motion of the particle is proport09 Sep, 2020 (E)Motion of Charged Particle in Magnetic Field
- 31A bar magnet having magnetic moment is bent as an arc. Its magnetic moment09 Sep, 2020 (E)Magnetic Moment
- 32The magnetic field at point of given figure due to carrying of current by a conductor of radius , is09 Sep, 2020 (E)Magnetic Field
- 33Which of the following components of an circuit, with an AC supply, dissipates energy?09 Sep, 2020 (E)AC Circuits
- 34Consider a parallel plate capacitor which is maintained at potential . The separation distance between the plates of capacitor and the area 09 Sep, 2020 (E)Electromagnetic Waves and Maxwell's equations
- 35The de-Broglie wavelength of the electron in the first Bohr orbit of the hydrogen atom is09 Sep, 2020 (E)Matter Waves
- 36In hydrogen spectrum, if the shortest wavelength in Balmer series is , the shortest wavelength in Brackett series is09 Sep, 2020 (E)Atomic Spectrum
- 37A radioactive source has a half-life of . A freshly prepared sample of the same exhibits radioactivity 32 times the permissible safe value. 09 Sep, 2020 (E)Radioactivity
- 38In a Zener regulated power supply a Zener diode with is used for regulation. The load current is and the unregulated input voltage is . To g09 Sep, 2020 (E)Diodes
- 39Identify the equivalent logic gate for the following circuit.09 Sep, 2020 (E)Logic gates
- 40The modulation index used in amplitude modulation of a message signal of peak voltage is 0.5 . By how much the peak voltage of the carrier s09 Sep, 2020 (E)Modulation
Frequently Asked Questions
1.How many questions are in the TS EAMCET 2020 9th September Evening Shift paper?
This paper has 160 questions in total - 40 from Chemistry, 80 from Mathematics, and 40 from Physics.
2.Can I practise questions from just one subject?
Yes. Use the Chemistry, Mathematics, and Physics tabs at the top of the page to jump directly to that subject's question set within this shift.
3.Is this the same paper for all students who appeared in the evening shift?
TS EAMCET uses different question sets across shifts and sessions to maintain exam integrity, so this page reflects the specific paper administered in the 9th September 2020 evening shift.
4.Where can I find the morning shift paper for the same date?
The TS EAMCET 2020 9th September Morning Shift paper is listed separately - you can switch to it from the "TS EAMCET Paper Wise PYQs" panel, under TS EAMCET 9th September 2020.
5.What is the structure of the TS EAMCET 2020 9th September Evening Shift paper?
The TS EAMCET 2020 9th September Evening Shift paper on MARKS has 160 questions, organised by subject:
- Chemistry: 40 questions - 40 single-correct.
- Mathematics: 80 questions - 80 single-correct.
- Physics: 40 questions - 40 single-correct.
6.What is the difficulty level of the TS EAMCET 2020 9th September Evening Shift paper?
Each question on MARKS carries a difficulty rating. Of the 160 rated questions in this paper, 66 (41%) are easy, 65 (41%) are medium and 29 (18%) are hard. Subject wise:
- Chemistry: 18 easy, 17 medium, 5 hard
- Mathematics: 25 easy, 35 medium, 20 hard
- Physics: 23 easy, 13 medium, 4 hard
7.Which chapters had the most questions in the TS EAMCET 2020 9th September Evening Shift paper?
The chapters with the most questions in each subject were:
- Chemistry: Coordination Compounds (3), Hydrocarbons (3), and p Block Elements (Group 15, 16, 17 & 18) (3).
- Mathematics: Circle (5), Indefinite Integration (5), and Probability (5).
- Physics: Magnetic Effects of Current (4), Motion In Two Dimensions (3), and Center of Mass Momentum and Collision (2).
8.Where can I find the solutions for the TS EAMCET 2020 9th September Evening Shift paper?
Open any question on this page. Its page shows the correct answer and, where one is available, the worked solution. A downloadable PDF of the whole shift is coming soon.
9.How should I use the TS EAMCET 2020 9th September Evening Shift paper to check my preparation?
Set a timer, attempt the 160 questions as you would in the exam, and only then open the answers. Note which subjects and chapters cost you the most marks, and revise those first using the chapter-wise practice for TS EAMCET. Repeating this with other papers shows whether the same weak spots keep coming back.
10.Will the TS EAMCET 2020 9th September Evening Shift paper help me prepare for TS EAMCET 2027?
Yes. Every past paper shows the question styles and topics TS EAMCET has asked before, and a solved paper gives you a realistic benchmark for speed and accuracy. Use it along with the other papers to spot the chapters that keep returning.