SSC CGL Model Paper 11

Question : 59 of 100

Marks: +1, -0

The ratio of the efficiencies of A, B and C is 4 : 5 : 2, Working together, they can complete a piece of work in 7 days. A and B work together for 3 days. The remaining work will be completed by C alone in?

22 days
25 days
20 days
30 days

Validate

Solution:

A : B : C = 4 : 5 : 2
sum of ratio = 11
Total work = 11 × 7 = 77
A & B work for 3 days = 9 × 3 = 27
Remaining work = 7 7 - 27 = 50
C =

50/2

= 25 days

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