SOLUTION: If it takes 2 men to do a job in 12 hours, how many men will it take to do the same job in 30 minutes? Please help. Thank you.

Algebra ->  Pythagorean-theorem -> SOLUTION: If it takes 2 men to do a job in 12 hours, how many men will it take to do the same job in 30 minutes? Please help. Thank you.      Log On


   

Question 318852: If it takes 2 men to do a job in 12 hours, how many men will it take to do the same job in 30 minutes?
Please help. Thank you.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Rate*Time=Output
%28R%2BR%29%2A12=Z
24R=Z
1.R=Z%2F24
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With n workers, it takes 30 minutes or 1/2 hr,
n%2AR%2A%281%2F2%29=Z
Substitute using eq. 1,
n%28Z%2F24%29%2A%281%2F2%29=Z
t=48
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48 workers are needed to meet the 1/2 hour time allotted.