Saved Bookmarks
| 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 |
|