20 men or 30 women finish a work in
16 days. In how many days can 10 men
and 25 women can finish the same
work ?
(1) 10
(2) 12
(3) 15
(4) 16
Answers
Answered by
2
Answer:
12 days
Step-by-step explanation:
hope it helps you but I don't think you'll like it but I tried so
Answered by
0
Answer:
12 days
Step-by-step explanation:
12 days
If 20 men (M) can do work (W) in 16 days, then 1 M can do W in 20x16 = 320 days
If 30 women (F) can do W in 16 days, then 1 F can do W in 30x16 = 480 days
Each M does 1/320 W each day and each F does 1/480 W each day
10 M do 10/320 or 30/960 W each day; 25 F do 25/480 or 50/960 W each day.
Together they do 30/960 + 50/960 = 80/960 W each day, which reduces to 1/12 W each day.
Therefore the full work will be done by 10 M and 25 F in 12 days, with the men doing 3/8 of the work and the women performing 5/8.
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