Bank Aps Q&A on Time and Work

Hi friends,this is one of the previous year bank question asked.Already there are different problems on time and work solved.In upcoming days ,complete list on  time &work  problems will be posted.

Question:

10 women can complete a work in 7 days and 10 children take 14 days to complete the work .How many days 5 women and 10 children take to complete the work?

Solution:

As per concept,
If(a person) finish the work in “n days” .
Then(a person 1day work )=[1/n]

If(10 women)finish the work in”7days”
Then 10women done a work in 1 day=1/7
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From above find it for by (1woman 1 day work),
(10*1)women done a work in 1 day=1/7
1woman done a work in 1 day =1/70
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Similarly,
As per concept,
If(a person) finish the work in “n days” .
Then(a person 1day work )=[1/n]

If(10 children)finish the work in”14days”
Then 10 children done a work in 1 day=1/14
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From above find it for by (1child 1 day work),
(10*1)child done a work in 1 day=1/14
1child done a work in 1 day =1/140
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Now to find days for,
(5 women and 10 children) take to complete the work,
->(5 *1women and 10*1 children) work in one day
->5(1women done a work in one day)+10(1 child done a work in one day)
->5(1/70)+10(1/140)
->(1/14)+(1/14)
->2/14
->1/7
As per concept,
If (a person 1day work )=[1/n]
Then(a person) finish the work in “n days”
(5 women and 10 children) take to complete the work =1/7

Then,

(5 women and 10 children) complete the work in 7 days.