Question
If 20 men or 12 boys can complete a job in 25 days, how
long will it take for a team of 15 men and 18 boys to complete the same job? (Calculate approximate value)Solution
According to the question,
20M = 12B
Or, 5M = 3B
Therefore, (15M + 18B) = (9B + 18B) = 27B
12 boys take 25 days to complete the work
Therefore, time taken by 27 boys to complete the work = (12 × 25) / 27 = 11.11 days or 11 days
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