6 children and 2 men complete a job in 6 days. Each child takes twice as much

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6 children and 2 men complete a job in 6 days. Each child takes twice as much time a man takes to complete the same amount of job. In how many days will 4 men complete the same job.

Answer: Option E
:
E

Given that, 1 man = 2 child.

So, 6 children + 2 men = 3 men + 2 men = 5 men.So, 5 men complete a job in 6 days.

So, amount of work mandays $= 5 \times 6 = 30$ man days. Now, when 4 men are working, then number of days taken $= \frac{30}{4} = 7.5$ days

Hence option (d)

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