Jump to a section

MHTCET 2026 11th April Morning Shift

Browse the complete Chemistry, Mathematics, and Physics question set from the MHTCET 2026 11th April Morning 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 150 questions in total - 65 easy (43%), 85 moderate (57%) and 0 tough (0%). That's an easier-than-usual mix for this exam - aim to clear it quickly and save time for the harder papers. By subject: Physics 34% easy, 66% moderate, 0% tough; Chemistry 60% easy, 40% moderate, 0% tough; Mathematics 36% easy, 64% moderate, 0% tough.

Chemistry questions were spread across 26 chapters, with Electrochemistry (4), Aldehydes and Ketones (3), and Chemical Kinetics (3) carrying the most weight. Mathematics questions were spread across 25 chapters, with Differentiation (5), Vector Algebra (5), and Application of Derivatives (4) carrying the most weight. Physics questions were spread across 24 chapters, with Electrostatics (4), Wave Optics (4), and Alternating Current (3) carrying the most weight.

Chemistry

  1. 1Calculate the mass of molecules of oxygen in amu and in grams.11 Apr, 2026 (M)Mole concept
  2. 2Match List I with List II List I Element List II Number of Neutron (A). (I). (B). (II). (C). (III). (D). (IV). Choose the correct answer fro11 Apr, 2026 (M)Atomic Mass and Atomic Size
  3. 3Identify the shape of molecule from the following options.11 Apr, 2026 (M)Hybridisation and VSEPR Theory
  4. 4Identify the function of salt bridge.11 Apr, 2026 (M)Concentration cell
  5. 5Which of the following is obtained when dihydrogen reacts with the alkali metals at high temperature?11 Apr, 2026 (M)Chemical properties of hydrogen
  6. 6According to the kinetic molecular theory of gases, the average kinetic energy of gas molecules:11 Apr, 2026 (M)Kinetic theory of gases
  7. 7Which of the following assertions about the extent of physisorption is correct?11 Apr, 2026 (M)Adsorption
  8. 8Which of the following compounds is carcinogenic and toxic?11 Apr, 2026 (M)Preparation and Properties of Benzene
  9. 9What type of isomerism is exhibited by neopentane?11 Apr, 2026 (M)Isomerism of Organic Compounds
  10. 10What type of drug the aspirin is?11 Apr, 2026 (M)Drugs and It's Classification
  11. 11What is the total number of spheres that surrounds the tetrahedral hole in the close-packed three-dimensional structure?11 Apr, 2026 (M)Cubic system
  12. 12In a cubic unit cell of an ionic compound, the eight corners are occupied by anions and cations at the center of the cube. Calculate the vol11 Apr, 2026 (M)Cubic system
  13. 13Pt has FCC structure with an edge length of unit cell pm. What is the radius of Pt?11 Apr, 2026 (M)Cubic system
  14. 14Identify from the following pair of solutions that exhibits the same osmotic pressure. [molar mass of urea g mol and molar mass of glucose g11 Apr, 2026 (M)Colligative Properties and Abnormal Molecular Masses
  15. 15The solubility of gas in water at C and bar is . Calculate the solubility of gas in water at the same temperature when the partial pressure 11 Apr, 2026 (M)Henry's law
  16. 16Vapour pressure of at C is mm Hg. If g of a non-volatile solute is dissolved in of . Find the vapour pressure of the solution. (Density of a11 Apr, 2026 (M)Vapour pressure and raoult's law
  17. 17What happens when is dissolved in water? Identify correct statements from the following11 Apr, 2026 (M)Salt Hydrolysis
  18. 18What happens when solid dissolved in water?11 Apr, 2026 (M)Salt Hydrolysis
  19. 19Which of the following aqueous solution of salt have at K?11 Apr, 2026 (M)Salt Hydrolysis
  20. 20Which of the following processes exhibits, ?11 Apr, 2026 (M)First Law and Basic Fundamentals of Thermodynamics
  21. 21Calculate the work done when mole of an ideal gas is expanded reversibly and isothermally from initial pressure bar to final pressure bar at11 Apr, 2026 (M)First Law and Basic Fundamentals of Thermodynamics
  22. 22Calculate the enthalpy change for the following reaction, using given bond energy (kJ/mol) (C-H = , H-O = , H-Cl = , C-Cl = and C-O = )11 Apr, 2026 (M)Laws of Thermochemistry and Enthalpy Change
  23. 23Which of the following statements is true about the voltaic cell?11 Apr, 2026 (M)Commercial Cells and Batteries
  24. 24Which of the following statements is correct regarding electrolysis of molten NaCl?11 Apr, 2026 (M)Cells and Electrode Potential, Nernst Equation
  25. 25At K, the specific conductance ( ) of a M NaCl solution is . Calculate the molar conductivity ( ) of the solution in .11 Apr, 2026 (M)Conductance and Conductivity
  26. 26Which of the following statements is NOT true about the rate constant?11 Apr, 2026 (M)Rate law and rate constant
  27. 27The rate constant for a first order reaction is . How much time will it take to reduce the concentration of the reactant to of its initial v11 Apr, 2026 (M)Integrated rate laws
  28. 28A first order reaction complete % in minutes. How long will the reaction take to complete %?11 Apr, 2026 (M)Integrated rate laws
  29. 29Which of the following is not characteristics of interhalogen compounds?11 Apr, 2026 (M)Halogens and Its Compounds
  30. 30Which of the following hydrides of Group elements has highest reducing property?11 Apr, 2026 (M)Periodic properties
  31. 31Why zinc does not exhibit variable oxidation states?11 Apr, 2026 (M)Properties of D-block elements
  32. 32Identify the set of paramagnetic ions among the following.11 Apr, 2026 (M)Properties of D-block elements
  33. 33In a complex compound, central metal ion is11 Apr, 2026 (M)Terminology of coordination compounds
  34. 34Identify the hybridization in central metal of complex.11 Apr, 2026 (M)Werner's theory and Valence Bond Theory
  35. 35The major product 'B' in the below mentioned reaction is-11 Apr, 2026 (M)Preparation and Properties of Monohalides
  36. 36Wurtz reaction is NOT possible with11 Apr, 2026 (M)Preparation and Properties of Monohalides
  37. 37Which one of the following factors proceeds more rapidly, unimolecular nucleophilic substitution reaction?11 Apr, 2026 (M)Preparation and Properties of Monohalides
  38. 38The molecule with a maximum boiling point is11 Apr, 2026 (M)Preparation and Properties of Alcohols
  39. 39Which from following is a suitable method for preparation of ether?11 Apr, 2026 (M)Preparation of Ethers
  40. 40Which from following is obtained as major product when methoxybenzene is treated with nitrating mixture?11 Apr, 2026 (M)Reactions of aromatic compounds
  41. 41Identify the product obtained when Grignard reagent reacts with alkyl cyanide followed by acid hydrolysis.11 Apr, 2026 (M)Method of preparation for Ketones
  42. 42Acetaldehyde, when heated in the presence of sodium hydroxide and iodine forms11 Apr, 2026 (M)Tests for aldehyde and ketones
  43. 43Which of the following reactions is an example of a disproportionation reaction?11 Apr, 2026 (M)Chemical reactions for aldehydes and ketones
  44. 44Identify the product obtained when RCN is treated with sodium and alcohol.11 Apr, 2026 (M)Preparation and Properties of Amines
  45. 45Which of following amines exhibits carbylamine test?11 Apr, 2026 (M)Preparation and Properties of Amines
  46. 46The secondary structure of protein is determined by11 Apr, 2026 (M)Proteins
  47. 47The reaction of glucose with acetic Anhydride, confirms the11 Apr, 2026 (M)Preparation and Reactions of Glucose
  48. 48Which of the following polymers is also called as dacron?11 Apr, 2026 (M)Preparation and Properties of Polymers
  49. 49Which of the following compounds are used to obtain terylene polymer?11 Apr, 2026 (M)Preparation and Properties of Polymers
  50. 50Which of the following is a green alternative for dry cleaning solvents?11 Apr, 2026 (M)Control of environmental pollution

Mathematics

  1. 1The value of the expression is equal to:11 Apr, 2026 (M)Basic Identities & T Ratios
  2. 2The equation of a line passing through the point of the intersection of the lines and and having x intercept is11 Apr, 2026 (M)Concurrency & Family of Lines
  3. 3The equation of a circle which passes through the points and and whose center lies on the straight line is11 Apr, 2026 (M)Equation of Circle & its intercept
  4. 4Two cards are drawn at random from a standard pack of cards. Then the probability that the draw consists of exactly one face card and exactl11 Apr, 2026 (M)Classical Definition of Probability
  5. 5If , then the value of is11 Apr, 2026 (M)Polar and Euler Form
  6. 6There are boys and girls seated in a row for a photograph. The number of ways in which a photograph can be taken if the girls occupy only od11 Apr, 2026 (M)Permutation
  7. 7The domain of the function is ...11 Apr, 2026 (M)Domain
  8. 8The value of , where denotes the greatest integer function, is.....11 Apr, 2026 (M)Existance of Limit
  9. 9Let the function be defined as: If is continuous at , then the value of is...11 Apr, 2026 (M)Continuity
  10. 10The statement pattern is logically equivalent to11 Apr, 2026 (M)Mathematical Reasoning
  11. 11If , then which of the following statements is not true?11 Apr, 2026 (M)Inequalities
  12. 12If the truth value of the compound statement is False then the truth values of and are respectively......11 Apr, 2026 (M)Mathematical Reasoning
  13. 13The principal solutions of are...11 Apr, 2026 (M)Basic
  14. 14If , then the value of is...11 Apr, 2026 (M)Sum and difference of angles
  15. 15If , then is equal to11 Apr, 2026 (M)Inverse of a Matrix
  16. 16In , with usual notations, if , then the values of and are.....11 Apr, 2026 (M)Sine Rule and its application
  17. 17The minimum value of is............11 Apr, 2026 (M)Sum of complementary angles
  18. 18If the equation represents a pair of straight lines, then their point of intersection is11 Apr, 2026 (M)Condition for 2nd degree equationto represent pair of straight lines
  19. 19If D and E are the midpoints of the sides BA and BC of triangle ABC, then11 Apr, 2026 (M)Algebra of Vectors
  20. 20Let , and be vertices of a triangle, then the area of the triangle is11 Apr, 2026 (M)Algebra of Vectors
  21. 21If are distinct non-negative numbers and the vectors lie in the same plane, then the value of is...11 Apr, 2026 (M)Scalar Triple Product
  22. 22If and are the position vectors of the vertices A, B and C repectively of . Then the position vector of the point where the bisector of the 11 Apr, 2026 (M)Algebra of Vectors
  23. 23A plane meets the coordinate axes at points A, B and C, such that the centroid of a triangle ABC is . The perpendicular distance from the or11 Apr, 2026 (M)Basics of point in 3 dimension
  24. 24If the lines are perpendicular to each other, then the equation of a plane containing the line and parallel to the line for the value of tha11 Apr, 2026 (M)Line in Space
  25. 25If the lines and intersect each other, then the value of is....11 Apr, 2026 (M)Line in Space
  26. 26If the points and are equidistant from the plane , then the value of are11 Apr, 2026 (M)Plane in Space
  27. 27The point at which the maximum value of subject to constraints and is.11 Apr, 2026 (M)Linear Programming
  28. 28If , then the value of at is11 Apr, 2026 (M)Differentiation of composite functions
  29. 29If , then the value of is11 Apr, 2026 (M)Differentiation of composite functions
  30. 30If , then at is11 Apr, 2026 (M)Differentiation of implicit functions
  31. 31If , then the value of at is11 Apr, 2026 (M)Higher order derivatives
  32. 32The equation of the tangent to the curve at is11 Apr, 2026 (M)Tangent Normal
  33. 33The approximate value of is11 Apr, 2026 (M)Rate Measure Error and Approximation
  34. 34A wire of length m is to be bent to form a rectangle such that its area is maximum, then its area is.....11 Apr, 2026 (M)Maxima Minima
  35. 35is equal to11 Apr, 2026 (M)Integration by Substitution
  36. 36If , where is constant of integration, then are respectively equal to11 Apr, 2026 (M)Integration by Substitution
  37. 37is equal to11 Apr, 2026 (M)Integration using Partial Fraction
  38. 38If , then the sum of the values of is..11 Apr, 2026 (M)Properties of Definite Integration
  39. 39Preview not available - open to view this question.11 Apr, 2026 (M)Area of Curve along axis
  40. 40If denotes the greatest integer function, then is equal to11 Apr, 2026 (M)Properties of Definite Integration
  41. 41The area of the shaded region is ... sq.units.11 Apr, 2026 (M)Area of Curve along axis
  42. 42The order and degree of the differential equation respectively are11 Apr, 2026 (M)Order and Degree
  43. 43The differential equation representing the family of curves is11 Apr, 2026 (M)Formation of Differential Equation
  44. 44The particular solution of the differential equation , when and is11 Apr, 2026 (M)Variable Separable Form
  45. 45If the following function is probability density function of r.v. X , for , otherwise, then the value of is11 Apr, 2026 (M)Random Variable and its Probability Distribution
  46. 46Let . If and , then the probability of getting at most one success is .....11 Apr, 2026 (M)Bernoulli Trial and Binomial Distribution
  47. 47If then is not11 Apr, 2026 (M)Inverse of a Matrix
  48. 48If , where and , then the respective values of A, B and C are ......11 Apr, 2026 (M)Differentiation of composite functions
  49. 49The difference between the local extreme values of the function is ......11 Apr, 2026 (M)Maxima Minima
  50. 50The vector is perpendicular to and the vector is perpendicular to . Then the angle between and is11 Apr, 2026 (M)Algebra of Vectors

Physics

  1. 1A flywheel rotating about a fixed axis has a kinetic energy of joule, if its angular frequency is Hz, then calculate the moment of inertia o11 Apr, 2026 (M)Rotational kinematics
  2. 2Two massless springs of spring constants and are connected one after the other forming a single chain, suspended vertically and a certain ma11 Apr, 2026 (M)Spring force
  3. 3A car passes three points A, B and C at m/s, m/s and m/s respectively in a straight line with uniform acceleration. If distance m then find 11 Apr, 2026 (M)Uniform Motion
  4. 4Following figure indicates the electric potential V as a function through 4 regions on x-axis. Which of the following is correct for the ele11 Apr, 2026 (M)Electric Potential and Potential Energy
  5. 5A photon and an electron have equal energy E. The ratio of (electron) to (photon) is proportional to11 Apr, 2026 (M)Photoelectric Effect
  6. 6For large magnifying power of a telescope11 Apr, 2026 (M)Optical Instruments
  7. 7The number of revolutions per second made by an electron in the first Bohr orbit of hydrogen atom is ( = Planck's constant, is the mass of e11 Apr, 2026 (M)Bohr's Atomic Model
  8. 8Which of the following figure best represents the variation of magnetic susceptibility ( ) with temperature for a diamagnetic substance?11 Apr, 2026 (M)Magnetic Materials and their Properties
  9. 9A galvanometer has a current range of mA and a voltage range of V. To convert this galvanometer into an ammeter of range A, what is the shun11 Apr, 2026 (M)Electric Instruments
  10. 10A wheel is rotating at rpm about its axis of rotation. When the power is cut off, it comes to rest in half a minute. Its angular retardation11 Apr, 2026 (M)Rotational kinematics
  11. 11Three charges , and are placed in a straight line of length at points at distance , , respectively. In order to make the net force on be zer11 Apr, 2026 (M)Electric Charge and Coulomb's law
  12. 12There is a body having mass and performing SHM with amplitude ' '. There is a restoring force , where is the displacement. The total energy 11 Apr, 2026 (M)Energy of Simple Harmonic Motion
  13. 13The following figure represents two bulbs and , resistor R and an inductor L. When the switch S is turned off, which of the following statem11 Apr, 2026 (M)LR Circuit
  14. 14When the conductivity of a semiconductor is only due to breaking of covalent bonds, the semiconductor is called11 Apr, 2026 (M)Semiconductors
  15. 15Two samples A and B of gas initially at the same pressure and temperature. They are compressed from volume to (A isothermally and B adiabati11 Apr, 2026 (M)Thermodynamic Processes
  16. 16The kinetic energy of the electron in an orbit of radius in hydrogen atom is proportional to ( = electronic charge)11 Apr, 2026 (M)Bohr's Atomic Model
  17. 17Two light waves amplitudes in the ratio produce interference. The ratio of the maximum to minimum intensity is11 Apr, 2026 (M)Interference of Light
  18. 18Photoelectric emission is observed from a metallic surface for frequencies and of the incident light rays ( ). If the maximum values of kine11 Apr, 2026 (M)Photoelectric Effect
  19. 19The energy spectrum of a black body exhibits a maximum of wavelength . The temperature of the black body is now changed such that the energy11 Apr, 2026 (M)Radiation
  20. 20The period of oscillation of a simple pendulum is given by where is about cm and is known to have cm accuracy. The period is about s. The ti11 Apr, 2026 (M)Errors of Measurement
  21. 21A vessel contains oil (density ) over mercury (density ). A homogeneous sphere floats with half of its volume immersed in mercury and the ot11 Apr, 2026 (M)Archmidies Principle
  22. 22The position vector of a particle is . Calculate the angle between its position vector and the velocity vector. ( )11 Apr, 2026 (M)Uniform Circular Motion
  23. 23A long rectangular conducting loop of width ' ' mass ' ' and resistance ' ' is placed partly in a perpendicular magnetic field ' '. With wha11 Apr, 2026 (M)Motional and Rotational EMF
  24. 24A particle of mass is moving in a circular path of constant radius such that its centripetal acceleration is varying with time as, . The pow11 Apr, 2026 (M)Uniform Circular Motion
  25. 25In common emitter transistor amplifier, the output resistance is k and the current gain . If power gain of amplifier is , what is the input 11 Apr, 2026 (M)Junction Transistors
  26. 26An ideal gas undergoes cyclic process ABCDA as shown in given p-V diagram. What is the magnitude of amount of work done by the gas?11 Apr, 2026 (M)Thermodynamic Processes
  27. 27A string of length m and mass kg is tightly clamped at its ends. The tension in the string is N. Identical wave pulses are produced at one e11 Apr, 2026 (M)Basics of Mechanical Waves
  28. 28Given below are two statements: Statement I: Acceleration due to earth's gravity decreases as you go 'up' or 'down' from earth's surface. St11 Apr, 2026 (M)Acceleration Due to Gravity
  29. 29A spherical ball of radius mm and density g/cc is dropped in glycerine of coefficient of viscosity poise and density g/cc. Viscous force on 11 Apr, 2026 (M)Viscosity
  30. 30A parallel plate capacitor has plate area and plates separation mm. The space between the plates is filled with a dielectric medium of a thi11 Apr, 2026 (M)Capacitors with Dielectric
  31. 31A particle executes simple harmonic motion between and . If time taken by particle to go from to is s, then time taken by particle in going 11 Apr, 2026 (M)Simple Harmonic Motion
  32. 32Two long parallel wires carrying currents A and A in opposite directions are placed at a distance of cm from each other. A point P is at equ11 Apr, 2026 (M)Magnetic Field
  33. 33In a Young's double slit experiment, the intensities at two points, for the path difference and ( being the wavelength of light used) are an11 Apr, 2026 (M)Youngs Double Slit Experiment
  34. 34Two polaroid A and B placed in such a way that the pass-axis of polaroid are perpendicular to each other. Now, another polaroid C is placed 11 Apr, 2026 (M)Polarization of Light
  35. 35In the circuit shown below, the ac source has voltage volt with rad/s. What will be the amplitude of the current?11 Apr, 2026 (M)AC Circuits
  36. 36A wire of length is bent in the form of a circular coil and current ' ' is passed through it. This coil is kept in magnetic field. The torqu11 Apr, 2026 (M)Force and Torque on Current Carrying Conductor
  37. 37Two rain drops of same radius ' ' falling with same terminal velocity ' ' merge and form bigger drop of radius ' '. The terminal velocity of11 Apr, 2026 (M)Viscosity
  38. 38A tuning fork of frequency produces beats per second when sounded with a vibrating sonometer string. What must have been the frequency of th11 Apr, 2026 (M)Beats
  39. 39What does the following combination of gates produce?11 Apr, 2026 (M)Logic gates
  40. 40A ray of light is incident of the surface of a glass plate at an angle of incidence equal to Brewster's angle . If denotes the refractive in11 Apr, 2026 (M)Polarization of Light
  41. 41In an AC circuit , . What is the power dissipated in the circuit? [ ]11 Apr, 2026 (M)Alternating Current, Voltage and Power
  42. 42Two metal sphere of radius and have same surface charge density . If they are brought in contact and then separated, the surface charge dens11 Apr, 2026 (M)Electric Potential and Potential Energy
  43. 43A wire of length and diameter is used in a bulb. The temperature of wire is and power radiated by the wire is . Its emissivity is ( = Stefan11 Apr, 2026 (M)Radiation
  44. 44An inductor of reactance , a capacitor of reactance , and a resistor of resistance are connected in series with an AC source of V, Hz. Avera11 Apr, 2026 (M)AC Circuits
  45. 45Three identical heat conducting rods are connected in series as shown in the figure. The rods on the side have thermal conductivity while th11 Apr, 2026 (M)Conduction
  46. 46In a metre bridge experiment the balance point is obtained if the gaps are closed by and . A shunt of is added to resistor to shift the bala11 Apr, 2026 (M)Wheatstone Bridge
  47. 47A vessel has gram of hydrogen at pressure and temperature K. A small hole is made in it so that hydrogen leaks out. How much hydrogen leaks 11 Apr, 2026 (M)Gas Laws
  48. 48A square loop of area has a resistance of . The loop is placed in uniform magnetic field of magnitude T. The plane of the loop is perpendicu11 Apr, 2026 (M)Motional and Rotational EMF
  49. 49Which of the following statements is NOT TRUE? a. Work done to move a charge on an equipotential surface is not zero. b. Equipotential surfa11 Apr, 2026 (M)Electric Potential and Potential Energy
  50. 50What is the effect of humidity on sound waves when humidity increases?11 Apr, 2026 (M)Speed of Sound Waves

Frequently Asked Questions

1.How many questions are in the MHTCET 2026 11th April Morning Shift paper?

This paper has 150 questions in total - 50 each from Chemistry, Mathematics, and 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 morning shift?

MHTCET uses different question sets across shifts and sessions to maintain exam integrity, so this page reflects the specific paper administered in the 11th April 2026 morning shift.

4.Where can I find the evening shift paper for the same date?

The MHTCET 2026 11th April Evening Shift paper is listed separately - you can switch to it from the "MHTCET Paper Wise PYQs" panel, under MHTCET 11th April 2026.

5.How is the MHTCET 2026 11th April Morning Shift paper structured?

The MHTCET 2026 11th April Morning Shift paper on MARKS has 150 questions, organised by subject:

  • Chemistry: 50 questions - 50 single-correct.
  • Mathematics: 50 questions - 50 single-correct.
  • Physics: 50 questions - 50 single-correct.
6.How difficult is the MHTCET 2026 11th April Morning Shift paper?

Each question on MARKS carries a difficulty rating. Of the 150 rated questions in this paper, 65 (43%) are easy, 85 (57%) are medium and 0 (0%) are hard. Subject wise:

  • Chemistry: 30 easy, 20 medium, 0 hard
  • Mathematics: 18 easy, 32 medium, 0 hard
  • Physics: 17 easy, 33 medium, 0 hard
7.Which chapters were asked the most in the MHTCET 2026 11th April Morning Shift paper?

The chapters with the most questions in each subject were:

  • Chemistry: Electrochemistry (4), Aldehydes and Ketones (3), and Chemical Kinetics (3).
  • Mathematics: Differentiation (5), Vector Algebra (5), and Application of Derivatives (4).
  • Physics: Electrostatics (4), Wave Optics (4), and Alternating Current (3).
8.Where can I find the solutions for the MHTCET 2026 11th April Morning 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 MHTCET 2026 11th April Morning Shift paper to check my preparation?

Set a timer, attempt the 150 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 MHTCET. Repeating this with other papers shows whether the same weak spots keep coming back.

10.Will the MHTCET 2026 11th April Morning Shift paper help me prepare for MHTCET 2027?

Yes. Every past paper shows the question styles and topics MHTCET 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.