N workers can complete a piece of work in 50 days. When 5 more workers joined, then the work got completed in 40 days, then what is the value of N?
As we know, M1 × D1 = M2 × D2 Where, M = number of Men and D = number of Days ⇒ N × 50 = (N + 5) × 40 ⇒ 5N = 4N + 20 ⇒ N = 20 Hence, the value of N = 20
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