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

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 â € ™ s contribution in the capital ?

A: 15750
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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 a of men to women ?

A: 5 : 2
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Q: Problem: what is the tens digit of 6 ^ 22 ?

A:
3
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