SSC CGL Tier II 12 Apr 2015 Paper

Question : 63 of 100

Marks: +1, -0

x can copy 80 pages in 20 hours, x and y together can copy 135 pages in 27 hours. Then y can copy 20 pages in

Solution:

(1) Number of pages copied by x in hour =

80/20 = 4

Number of pages copied by x and y in 1 hour

= 135/27 = 5

∴ Number of pages copied by y in 1 hour = 5 – 4 = 1
∴ Required time = 20 hours.

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