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3 men can do a piece of work in 18 days. 6 children can also do that work in 18 days. 4 men and 4 children together will finish the work in how many days?


A) 10

B) 6

C) 12

D) 9

Correct Answer:
D) 9

Description for Correct answer:

3 men = 6 children

1 man = 2 children

4 men + 4 children = 4 men +(4/2)men = 6 men

Given M1 = 3, M2 = 6, D1 = 18 W1 = W2 = 1 and D2 = ?

According to the formula,

M1D1W2 = M2D2W1

3 X 18 X 1 = 6 X D2 X 1

D2 = \( \Large\frac{3 \times 18}{6} \) = 9 days


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




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