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2 men and 3 boys can do a piece of work in 10 days while 3 men and 2 boys can do the same work in 8 days. In how many days can 2 men and 1 boy do the work?
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Explanation:
According to quéstion,
(2men+3boys)×10 days
= (3men+2boys)×8 days
20men+30boys=24men+16boys
2 men = 7 boys
2men+1boy=7boys+1boy=8boys from 1st line:
2men+3boys=>7boys+3boys
10 boys (Given)
10 boys can do a piece of Work in 10 days
1 boys can do a piece of work in 10×10 days
8 boys can do a piece of Work in
10×10\ 8=12 1\2 days