Question

if 90 men can do a certain job in 16 days working 12 hours per day then the part of that work which can be completed by 70 men in 24 days working 8 hours per day is 1)1/3
2)2/3
3)7/9
4)5/8​

Answer 1

Correct Answer:

3) 79

Description for Correct answer:

90men×16days×12hours/1work

70men×24days×8hours/W work

90×16×12=70×24×8/W

9W=7, W=7/9

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