Question
βnβ men working 12 hours a day can complete a work
in 15 days while (3n β 8) men working 12 hours a day can complete the same work in 9 days. In how many days can (n + 2) men working 5 hours a day complete the same work?Solution
According to the question, (n Γ 12 Γ 15) = {(3n β 8) Γ 12 Γ 9} => 5n = 9n β 24 => n = 6 Let the number of days taken by (n + 2) = 8 men be βxβ days Therefore, (6 Γ 12 Γ 15) = (8 Γ 5 Γ x) Therefore, x = 27 days
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