Question
If 15 men or 10 boys can finish a task in 18 days, how
long will it take for a team of 12 men and 15 boys to complete the same task? (Calculate approximate value)Solution
According to the question,
15M = 10B
Or, 3M = 2B
Therefore, (12M + 15B) = (8B + 15B) = 23B
10 boys take 18 days to complete the work
Therefore, time taken by 23 boys to complete the work = (10 Ă— 18) / 23 = 7.83 days or 8 days
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NAB
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Derision
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