Bank Aps Q&A on Time and Work

Bank QA TimeWork

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.

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