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

[Q]: Problem: the average of first 5 multiples of 5 is
[A]: 1


[Q]: Problem: the ratio of a to b is 4 to 5 , where a and b are positive . if x equals a increased by 25 percent of a , and m equals b decreased by 60 percent of b , what is the value of m / x ?
[A]: 2 / 5


[Q]: Problem: students at a school were on average 180 cm tall . the average female height was 170 cm , and the average male height was 184 cms . what was the ratio d of men to women ?
[A]:
5 : 2