2002
Mathematics
JAMB
The time taken to do a piece of work is inversely proportional to the number of men employed. if it takes 45 men to do a piece of work in 5 days, how long will it take 25 men
A.
15 days
B.
12 days
C.
5 days
D.
9 days
Correct Answer: 9 days
Explanation
T~1/M. T=k/M. K=TM. M=45; T=5. K=45 x 5.= 225=k. When M= 25. T=? 225/25= T = 9. Ans.
T~1/M. T=k/M. K=TM. M=45; T=5. K=45 x 5.= 225=k. When M= 25. T=? 225/25= T = 9. Ans.THIS WEEK's
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