Multiple Choice Questions

How many men will be required to plough 100 acres of land in 10 days if 10 men require 8 days to plo...........

Quantitative Aptitude (CDS) Time and work

How many men will be required to plough 100 acres of land in 10 days, if 10 men require 8 days to plough 20 acres of land?

Here, M₁ = 10, D₁ = 8, W₁ = 20
M₂ = X (let), D₂ = 10, W₂ = 100

M₁D₁/W₁=M₂D₂/W₂

(10×8)/20=(X×10)/100
⇒ X= 8×5 = 40

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