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Time and Work & Wages 5 4 4
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 Time and Work & Wages

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nandu

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Age: 28
Location: Chennai

PostSubject: Time and Work & Wages   Tue May 17, 2011 1:15 pm
8 women and 3 boys can complete piece of a work in 15 days.
In how many days will 12 women and 2 boys complete the same piece of work?

Options:

1.12 2. 8 3. 6 4. cannot be determined. 5. none
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Abhishek

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Age: 24
Location: Kolkata

PostSubject: Re: Time and Work & Wages   Tue May 17, 2011 4:25 pm
nandu wrote:
8 women and 3 boys can complete piece of a work in 15 days.
In how many days will 12 women and 2 boys complete the same piece of work?

Options:

1.12 2. 8 3. 6 4. cannot be determined. 5. none



There is a formula for solving such problems -

If a men and b women can do a piece of work in n days then c men and d women can do the same piece of work in :


Here

n = 15

a = 8

b = 3

c = 12

d = 2


Hence applying the formula we get :

15* 8* 3 / (12*3 + 8*2 )

=>360 / 52

=>60/7 days

8.xxxx

Make this formula as a thumbrule for solving such problems...

Similar formulas exists for a men or b women type problems . I will request U to pour in such questions here in this thread.....

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narendaz

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Join date: 2011-10-28

PostSubject: सर =>360 / 52 =>60/7 days कैसे हो गये है   Fri Oct 28, 2011 1:03 pm
Abhishek wrote:
nandu wrote:
8 women and 3 boys can complete piece of a work in 15 days.
In how many days will 12 women and 2 boys complete the same piece of work?

Options:

1.12 2. 8 3. 6 4. cannot be determined. 5. none



There is a formula for solving such problems -

If a men and b women can do a piece of work in n days then c men and d women can do the same piece of work in :


Here

n = 15

a = 8

b = 3

c = 12

d = 2


Hence applying the formula we get :

15* 8* 3 / (12*3 + 8*2 )

=>360 / 52

=>60/7 days

8.xxxx

Make this formula as a thumbrule for solving such problems...

Similar formulas exists for a men or b women type problems . I will request U to pour in such questions here in this thread.....

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