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

[EX Q]: Problem: if each side of a square is increased by 325 % in length , find the percentage change in its area ?
[EX A]: 956.25 %

[EX Q]: Problem: if the simple interest on a sum of money for 2 years at 5 % per annum is rs . 52 , what is the compound interest on the same sum at the rate and for the same time ?
[EX A]: s . 53.30

[EX Q]: Problem: yesterday it took robert 3 hours to drive from city a to city b . today it took robert 2.5 hours to drive back from city to city a along the same route . if he had saved 30 minutes in both trips , the speed for the round trip would be 80 miles per hour . what is the distance between city a and city b ?
[EX A]:
180