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How to solve Work questions

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Director
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How to solve Work questions [#permalink] New post 01 Dec 2005, 23:04
Hey Folks,
How do you solve Work question which has 3 figures

Like 5 people bolt 3 screws in 10 hours so how much time would it take 2 people to bolt 1 screw ...
Just an example..
Thanks,
Anand
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Re: How to solve Work questions [#permalink] New post 02 Dec 2005, 00:50
andy_gr8 wrote:
Hey Folks,
How do you solve Work question which has 3 figures

Like 5 people bolt 3 screws in 10 hours so how much time would it take 2 people to bolt 1 screw ...
Just an example..
Thanks,
Anand

you have to solve it logically
if it takes 5 people to bolt 3 screws in 10 hours

it will take 1 people to bolt 3 screws in 10*5 = 50 hours

it will take 1 person to bolt 1 screw in 10*5/3

so it will take 2 people to bolt 1 screw in 10 *5*2/3 = 33.33 hours
_________________

hey ya......

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Thanks nakib [#permalink] New post 02 Dec 2005, 14:56
Thanks nakib,
i tend to get confused with 3 variables.
Actually in these type of questions when they say that 1 guy leaves in between and after 3 days 2 new guys join in.So it becomes all the more difficult.I was thinking if there is a formula??
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Re: How to solve Work questions [#permalink] New post 03 Dec 2005, 08:07
nakib77 wrote:
andy_gr8 wrote:
Hey Folks,
How do you solve Work question which has 3 figures

Like 5 people bolt 3 screws in 10 hours so how much time would it take 2 people to bolt 1 screw ...
Just an example..
Thanks,
Anand

you have to solve it logically
if it takes 5 people to bolt 3 screws in 10 hours

it will take 1 people to bolt 3 screws in 10*5 = 50 hours

it will take 1 person to bolt 1 screw in 10*5/3

so it will take 2 people to bolt 1 screw in 10 *5*2/3 = 33.33 hours


little mistake: it will take 2 people to bolt 1 screw in 10 *5/(3*2)
2 people will finish the job in less time than 1 man.
Re: How to solve Work questions   [#permalink] 03 Dec 2005, 08:07
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