Multiple choice

A group of 3 men and 2 boys can do a work in 7 days, while a group of 4 men and 5 boys can do the work in 4 days. If each man gets Rs. 84, how much does (in Rs.) each boy get?

  1. Rs. 100.80

  2. Rs. 32.6

  3. Rs. 392

  4. Rs. 70

  5. Rs. 686

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let M be man's wage and B be boy's wage. Work = (3M + 2B)*7 = (4M + 5B)*4. 21M + 14B = 16M + 20B, so 5M = 6B. Given M = 84, 5(84) = 6B, so 420 = 6B, B = 70.