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Valluru Sailakshmi

· started a discussion

· 1 Months ago

I didn’t understand (Question:146841.0)

Make it brief

Question:
8 men or 10 boys can do a work in 36 days. In how many days can 16 men and 5 boys do the work?
Options:
A) 14\(\cfrac{3}{5}\)
B) 15\(\cfrac{2}{5}\)
C) \(14\cfrac{2}{5}\)
D) \(15\cfrac{3}{5}\)
Solution:

Ans (c) 8 men can do a work in 36 days, so 16 men can do it in 18 days. In the same way, 5 boys can do the work in 72 days. One day work of 16 men and 5 boys.

= 1/18 + 1/72 = 5/72

So, they can do the work in 72/5 = 14\(\cfrac{2}{5}\) days

Knowledge Expert

· commented

· 1 Months ago

Dear student,
Solution is already brief.
Keep learning,
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