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A group of men decided to do a work in 20 days, but five of them remained absent. If the rest of the group could complete the work in 24 days, then how many men were in the original group?1. 302. 353. 254. 20 |
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Answer» Correct Answer - Option 1 : 30 Given A group of men decided to do work in 20 days Due to the absence of 5 men, the rest complete the work in 24 days Formula used M1D1H1 = M2D2H2 M1 = number of men initially and M2 = final number of men D1 = Number of days initially and D2 = Finally number of days Calculation Let, initially, the number of men be x According to the question ⇒ x × 20 = (x - 5) × 24 ⇒ 20x = 24x - 120 ⇒ 4x = 120 ⇒ x = 30 ∴ The number of men originally is 30 |
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