1.

7 men and 8 boys can do a piece of work29in 2 days. 4 men and 12 boys can doof56the same work in 1 day. In how many dayswill 1 man do this work?(a) 24 days (b) 25 days (c) 28 days (d) 30 days

Answer»

7m + 8b =1/2. work in a day-------(1)4m + 12b=29/56. work in a day-------(2)

Multiply equation (1) by 12Multiply equation (2) by 8

I. e, 84m + 96 b =6- 32m + 96 b =(29/7) -------------------------- 52m. =(13/7)

m =(13/7) = 1 --------- ----- work in a day 52. 28

A man can do work in 28 days



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