4 men can finish a plumbing job in 30 hours. How many men are needed to
complete it in 12 hours?
1. 10 women can finish
Answers
Answered by
2
Answer:
4 Men can do work in 30 Hours
It means, 1 Man can do that work in 30x4 = 120 Hours
Or in 1 Hour, 1 man can do 1/120 of the total work.
So in 9 hours, 1 man can do only 9/120 of the work.
To complete entire work in 9 hours, we need to divide the 120 by 9 to get the number of men needed to do the work which turns out to be
120 / 9 = 40/3 = 10.34 Men or around 10 men if you are rounding off
Step-by-step explanation:
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Answered by
2
Answer:
No of men complete the work in 30 hours = 4
No of men complete the work in 1 hour = 4/30
No of men complete the work in 12 hours = 4/30 × 12 = 8/ 5 = 1.6 hours
Ans. 1.6 hours
Hope it helps.
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