Example 1. 16 boys take 12 days to complete a
work while 12 men do the same work in 8 days 16 men
began to work. After 3 days 6 men left but 4 boys joined
them. In how many days will be the remaining work be
completed ?
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16men×12=12men×8
2 men = 1 man
Total work=12men×8days=96units
16 men do work in 3 days
=16×3=48 units
6men+2men=8men
8 men will do 48 units in =48÷8=6 days
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