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

[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 182 cms . what was the ratio of men to women ?
[A]: 5 : 1

[Q]: Problem: a starts business with rs . 3500 and after 8 months , b joins with a as his partner . after a year , the profit is divided in the ratio 2 : 3 . what is b a ™️ s contribution in the capital ?
[A]: 15750

[Q]: Problem: in an election between two candidates , one got 55 % of the total valid votes . 20 % of the votes were invalid . if the total number of votes was 7500 , what was the number of valid votes that the other candidate got ?
[A]:
2700