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5 laborers working 12 hours a day can complete a piece of work in 30 days. In how many days will it take 15 laborers to do half the work, working 12 hours a day?

5 laborers working 12 hours a day can complete a piece of work in 30 days. In how many days will it take 15 laborers to do half the work, working 12 hours a day? Correct Answer 5 days

Given:

5 labours working 12hrs/day can complete the work in = 30 days

Calculation:

Required number of days = x

According to the question,

⇒ (5 × 12 × 30) × (1/2) = (15 × 12 × x)

⇒ 180x = 900

⇒ x = 5

∴ 5 days will be required.

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