SSC CGL Tier II 12 Apr 2015 Paper

Question : 64 of 100

Marks: +1, -0

x does

1 /4

of a job in 6 days. y completes rest of the job in 12 days. Then x and y could complete the job together in

Solution:

(2) x does

1/4

work in 6 days
∴ x does 1 work in 24 days
Similarly,
y does

3/4

work in12 days
∴ y does 1 work in

{12× 4}/3

= 16 days
(x + y)’s 1 day’s work

=1/24+1/16={2+3}/48=5/48

∴ Required time

=48/5

=9 3 /5

days

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