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

[EX Q]: Problem: what is the sum of the multiples of 4 between 63 and 151 inclusive ?
[EX A]: 233

[EX Q]: Problem: a father said to his son , ` ` i was as old as you are at the present at the time of your birth ' ' . if the father ' s age is 52 years now , the son ' s age 5 years back was :
[EX A]: d ) 21

[EX Q]: Problem: divide rs . 5500 among a , b and c so that a receives 1 / 3 as much as b and c together and b receives 1 / 5 as a and c together . a ' s share is ?
[EX A]:
1375