Q. 74 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 to finish
the work, and also that taken by 1 boy alone to finish the work
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70 days
Step-by-step explanation:
work is same (W1 = W2)
(4m + 6b)×5 = (3m+4b)×7 => 2b = 1 m
=> b/m = 1/ 2 ,b = 1 units/d & m = 2 units/d
Total work = (4×2 + 6×1) × 5 = 70 units
1 boy alone can finish it in 70/1
= 70 days
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