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  1. If 40 men can make 30 boxes in 20 days, How many more men are needed to make 60 boxes in 25 days?
    1. 20
    2. 24
    3. 27
    4. 28
Correct Option: B

Given in the question,
M1 = 40 Men , D1 = 20 days , W1 = 30 Boxes
M2 = 40 + M , D2 = 25 days , W2 = 60 Boxes
We know that ,

M1D1 = M2D2
W1W2

40 x 20 = ( 40 + M ) x 25
3060

⇒ 40 x 20 x 2 = ( 40 + M ) x 25
⇒ ( 40 + M ) = 40 x 20 x 2
25

⇒ ( 40 + M ) = 8 x 8 = 64 men ⇒ M = 64 - 40 = 24 men



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