Q68 / 150 · MHT CET 2007 · Mathematics

Two dice are rolled one after the other. The probability that the number on the first is smaller than the number on the second, is

  • A
    $\frac{1}{2}$
  • B
    $\frac{7}{18}$
  • C
    $\frac{3}{4}$
  • Correct answer
    D
    $\frac{5}{12}$

Solution

Let $A_{i}=$ Event of getting a number $i$ on first die. $B_{i}=$ Event of getting a number more than $i$ on second die. The required probability $$

Hence, the correct answer is option: 'D'.

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