SSC CGL 3 Sep 2016 Paper

Question : 51 of 100

Marks: +1, -0

If 10 people can do a job in 20 days, then 20 people with twice the efficiency can do the same job in

Solution:

In second case, the efficiency of a man is twice to that in the first case.
∴

M_1D_1

= 2

M_2D_2

⇒ 10 × 20 = 2 × 20 ×

D_2

⇒

D_2

{10×20}/{2×20}

= 5 days

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