12 men or 15 women can do work in 21 days and days no of 6 men and 10 women
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Answered by
8
15 women=12 men
so,1 woman=12/15=4/5 men.
Then,10 women=4/5×10=8 men.
=1 man will do that work in days=12×21=252
So,6+8 men will do that work in days=252/14=18 days
Answer=18 days
so,1 woman=12/15=4/5 men.
Then,10 women=4/5×10=8 men.
=1 man will do that work in days=12×21=252
So,6+8 men will do that work in days=252/14=18 days
Answer=18 days
Answered by
11
12 men take 21 days
⇒ 1 day = 1/21 of the work
Find the amount of work 1 man can do in a day:
12 men = 1/21 of the work
1 man = 1/21 ÷ 12 = 1/252 of the work
15 women can do the work in 21 days
⇒ 1 day = 1/21 of the work
Find the amount of work 1 women can do in a day:
15 women = 1/21 of the work
1 woman = 1/21 ÷ 15 = 1/315 of the work
Find the amount of work 6 men and 10 women can do in a day:
1 woman = 1/315 of the work
10 women = 1/315 x 10 = 2/63 of the work
1 man = 1/252 of the work
6 men = 1/252 x 6 = 1/42 of the work
10 women and 6 men = 2/63 + 1/42 = 1/18
Find the number of days needed for 6 men and 10 women to finish the work:
1/18 of the work = 1 day
18/18 of the work = 1 x 18 = 18 days
Answer: 6 men and 10 women needed 18 days to complete the work
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