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20 men can cut 30 trees in 4 h. If 4 men leave the job, how many trees will be cut in 12 h?


A) 72

B) 80

C) 68

D) 79

Correct Answer:
A) 72

Description for Correct answer:

Given, M1 = 20

T1 = 4, W1 = 30

M2 = 20 - 4 = 16

T2 = 12 and W2 = ?

According to the formula, M1 T1 W2 = M2 T2 W1

20 x 4 x W2 = 16 x 12 x 30

W2 = \( \Large\frac{16 \times 12 \times 30}{20 \times 4 } \)= 12 x 6 = 72 trees



Part of solved Time and work questions and answers : >> Aptitude >> Time and work




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