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

[EX Q]: Problem: find compound interest on $ 10000 at 15 % per annum for 2 years 4 months , compounded annually .
[EX A]: 3886.25

[EX Q]: Problem: a number is said to be prime saturated if the product of all the different positive prime factors of z is less than the square root of z . what is the greatest two digit prime saturated integer ?
[EX A]: 96

[EX Q]: Problem: a tailor trims 6 feet from opposite edges of a square piece of cloth , and 5 feet from the other two edges . if 80 square feet of cloth remain , what was the length of a side of the original piece of cloth ?
[EX A]:
20