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Natasha0123
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Two worker use 5 days to paint 1 house 10 Nov 2008, 05:43
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Could anyone help me deal with this kind of question esp, when have 3 variables. Thank you very much.

Two worker use 5 days to paint 1 house, if owner requires 6 painted-houses to be finished in 1 day. How many worker owner has to hire?

A. 20
B. 30
C. 40
D. 50
E. 60



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Two worker use 5 days to paint 1 house 10 Nov 2008, 05:52
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x = 1 worker/day
H = house painted
m = number of houses
n = number of workers

Formula => mH = nxd

Two worker use 5 days to paint 1 house => mH = H = xnd = 5*2x = 10x

Number of worked required = n = mH/d = 6H/(xd) = 6*10x /x = 60
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Two worker use 5 days to paint 1 house 10 Nov 2008, 05:55
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Is the QA E ?

I myself get confused with these kind of qs. I don't know if there's any specific formula , but here's how i would have done it.
2 workers - 5 days - 1 house.
2 workers - 30 days - 6 houses.
1 worker - 60 days - 6 houses.
60 workers - 1 day - 6 houses.

So if we have to do 60 days of job in 1 day, we will need 60 workers.
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Natasha0123
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Two worker use 5 days to paint 1 house 10 Nov 2008, 05:59
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lylya4
x = 1 worker/day
H = house painted
m = number of houses
n = number of workers

Formula => mH = nxd

Two worker use 5 days to paint 1 house => mH = H = xnd = 5*2x = 10x

Number of worked required = n = mH/d = 6H/(xd) = 6*10x /x = 60
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What's d stand for?

OA is E, thank you.
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Two worker use 5 days to paint 1 house 10 Nov 2008, 15:48
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Two workers use 5 days to paint 1 house, if owner requires 6 painted-houses to be finished in 1 day. How many worker owner has to hire?

You know that 2 workers = 5days of work so 1 worker = 10 days of work for 1 house if 6 houses are needed, times by 6 = 60 . No need to come up with a formula not enough time. Practice doing this in your head( breaking down the questions).
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yezz
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Two worker use 5 days to paint 1 house 10 Nov 2008, 16:25
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Two worker use 5 days to paint 1 house, if owner requires 6 painted-houses to be finished in 1 day. How many worker owner has to hire?


2 workers paints 1/5 house /day thus 10 workers are needed for 1 house per day thus 60 is the answer
E
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Two worker use 5 days to paint 1 house 10 Nov 2008, 17:54
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When you have three variables make one variable constant and move from there.
2 W - 5 days - 1 house

1 W - 10 days - 1 house

1 W - 60 days - 6 houses

? W - 1 day - 6 houses

will need more workers. So its 60/1 X 1 = 60

E



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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
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