instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: a number x is 5 times another number y . the percentage that y is less than x is
answer:
80 %


question:
Problem: a bag contains 12 red marbles . if someone were to remove 2 marbles from the bag , one at a time , and replace the first marble after it was removed , the probability that neither marble would be red is 25 / 36 . how many marbles are in the bag ?
answer:
48


question:
Problem: a man took a loan at rate of 12 % per annum simple interest . after 3 years he had to pay 7200 interest . the principal amount borrowed by him was .
answer:

rs 20000