Ex. 11. 2 men and 3 boys can do a piece of work in 10 days while 3 men and 2 boy 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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Answer:
12 1/2 Days
Step-by-step explanation:
According to question
(2men + 3boys) × 10 days
= (3men + 2 boys) × 8 days
20 men + 30 boys = 24 men + 16 boys
2 men = 7 boys
2 men + 1 boy = 7 boys + 1 boy = 8 boys {from 1st line} :
2 men + 3 boys => 7 boys + 3 boys
10 boys (Given)
10 boys can do a piece of work in 10 days
1 boy can do a piece of work in 10 × 10 days
8 boys can do a price of work in
10 × 10
8 = 12 1 Days
2
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