Question
20 boys can dig a pit in 15 days, while 5 men can dig
the same pit in 6 days. In how many days will 10 boys and 1 man together dig the pit?Solution
20B × 15 = 5M × 6
Or, 1M = 10B
Therefore, 10B + 1M = 10B + 10B = 20B
Therefore, 20 boys can complete the work in 15 days
So, 20 boys will complete in 15 days .
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