If 45 persons can complete a work in 18 days, working 8 hours a day, then how many persons are required to complete two-thirds of the same work in 20 days, working 9 hours a day?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 24
| Application |
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M1D1H1/W1 = M2D2H2/W2 Here, m = men w = work h = hour Also, w1 = w2 ⇒ (45 × 18 × 8)/1 = (x × 20 × 9)/(2/3) ⇒ 6480 = x × 270 ⇒ x = 6480/270 ⇒ x = 24 |
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Hence, Total persons = 24 |