The task is to generate the correct answer for a given math problem.

[Q]: Problem: at what rate percent on simple interest will rs . 750 amount to rs . 900 in 8 years ?
[A]: 2.5 %


[Q]: Problem: how many digits are required to number a book containing 240 pages ?
[A]: 612


[Q]: Problem: a 3 - digit positive integer is chosen at random . what is the probability that the product of its digits is even ?
[A]:
31 / 36