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?A24B40C36D30Answer: A. 24 Read Explanation: [M1 × D1 × T1] /W1 = [M2 × D2 × T2] /W2 [45 × 18 × 8] /1 = [M2 × 20 × 9] / (2/3) M2 = [45 × 18 × 8 × 2] /[3 × 20 × 9] = 24Read more in App