RRB Assistant Loco Pilot and Technician Model Paper 8 with solutions

Question : 4 of 75

Marks: +1, -0

If 4 men or 6 boys can do a piece of work in 20 days, then 12 men and 2 boys will do the same work in

10 days
8 days
6 days
5 days

Solution:

4M = 6B
1M =

{6B}/4

12M =

6/4

× 12 = 18B
12 Men + 2 Boys = 18 Boys + 2 Boys = 20 Boys
∵ 6 Boys are doing a work in 20 days
∴ 1 Boy is doing a work in 20 × 6 days
∴ 20 Boys are doing a work in

{20×6}/20

= 6 days

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