5 men and 12 boys finish a piece of work in 4 days. 7.men and 6 boys do it in 5 days the ratio between the effenciens of a man and boy is?
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Step-by-step explanation:
5 men and 12 boys finish a piece of work in 4 days, 7 men and 6 boys do it in 5 days. the ratio between the efficiencies of a man and boy is?
Solution:
Let men be m and boys be b
(5m + 12b) takes 4 days
(7m + 6b) takes 5 days
(5m + 12b) 4 = (7m + 6b) 5
20m + 48b = 35m + 30 b
15m = 18b
\frac{M}{b} = \frac{6}{5}
To know more:
Men and 6 Boys can finish a piece of work in 5 Days , While 3 Men and 4 Boys can Finish it in 7 days . Find the time taken by 1 man alone or that by 1 boy alone ?
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