Math, asked by ashishsharma35282, 1 year ago

If 2 men or 3 boys take 40 hrs to do a certain piece of work ,how long will 4 men and 9 boys working together take to complete the work?

Answers

Answered by krishsri2004

0

Step-by-step explanation:

2 men taking time to do a certain work = 40 hr

4 men take time to do a certain work = 20 hr

3 boys taking time to do a certain work = 40 hr

9 boys taking time to do a certain work = 13.3 hra

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