Multiple Choice Questions

If 10 men or 20 women or 40 children can do a piece of work in 7 months then 5 men 5 women 5 childre...........

Quantitative Aptitude (CUET) Time and work

If 10 men or 20 women or 40 children can do a piece of work in 7 months, then 5 men 5 women 5 children together can do half of work in?

6 months

4 months

5 months

8 months

10m 10*7=70 man months
10m=20w
20w=40c
c=w/2
w=m/2
5m +5 m/2+ 5 (m/2)/2=(35 m)/4
half of the work is 35 man months
35/((35)/4)=4 months

Hence, option 2 is the correct answer.

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