If 5 women or 8 girls can do a work in 84 days. In how many days can 10 women and 5 giris can
do the same work?
(A) 14
B) 32
(C) 20
(D) 24
don't give unnecessary answer
please give answer with explanation
Answers
Answer:
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Step-by-step explanation:
Given :
The work done by 5 women or 8 girls = 84 days
To Find :
The number of days in which 10 women and 5 girls can do work
Solution :
∵ The work done by 5 women or 8 girls = 84 days
i.e 5 w = 8 g
Or, 1 w = g
∴ 10 w = g × 10
= 16 g
∵ The 1's day work for 8 girls =
The 1's day work for 10 women + 5 girls = +
= + ( ∵ 10 w = 16 g)
=
Now,
∵ 8 girls can complete work in 84 days
Or, 1 girl can complete work in =
∴ girls can complete work in = × days
= 4 × 10 days
= 40 days
Hence, 10 women and 5 girls can do the same work in 40 days . Answer
Answer:
=>5 Women = 8 Girls
TOTALWORK=8×84=672GD, where GD = Girlday
Note: 1GD is the work done by 1 girl in 1 day.
Now, 10 Women + 5 Girls = 16 Girls + 5 Girls = 21 Girls
Time Taken =672 GD21 GD= 32 Days
So, Time taken by 10 women and 5 girls is 32 days