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skinsvt
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6 workers working at a constant rate can complete the job in 02 Jun 2007, 13:19
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6 workers working at a constant rate can complete the job in 12 days. How many additional workers need to be added at the same rate to complete the job within 8 days?



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6 workers working at a constant rate can complete the job in 02 Jun 2007, 13:32
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6 workers - 12 days

N workers - 8 days

N = 6 * (12/8) = 9

3 more workers
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skinsvt
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6 workers working at a constant rate can complete the job in 02 Jun 2007, 14:58
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I see what I did wrong...


I solved as 6/12 = n/8 12n=48 = n=4
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subhen
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6 workers working at a constant rate can complete the job in 02 Jun 2007, 15:30
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6 workers need 12 days to finish a job i.e. work they accomplish is 6*12=72 mandays.

To accomplish the same job in 8 days will require 72/8=9 workers

i.e. 3 addtional workers
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menonsujith
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6 workers working at a constant rate can complete the job in 02 Jun 2007, 21:36
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It is similar to something like:
1 person can build a house in 2 days
x people can build a house in 1 day

its 1*2/1 = 2 people.
Same here, 6*12/8 = 9 Men



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