SOLUTION: PLEASE If 5 men to paint five flagpoles in 5 hours, how many men are needed to paint the 15 flagpoles in 15 hours? . I know we should use rate here..but i don't know how :(

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Question 417633: PLEASE
If 5 men to paint five flagpoles in 5 hours, how many men are needed to paint the 15 flagpoles in 15 hours?
.
I know we should use rate here..but i don't know how :(

Found 2 solutions by stanbon, ankor@dixie-net.com:
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
If 5 men to paint five flagpoles in 5 hours, how many men are needed to paint the 15 flagpoles in 15 hours?
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# of men and hours are inversely related
# of men # of flagpoles are directly related
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men = k*poles/hrs
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Solve for "k" using "5 men paint five flagpoles in 5 hours"
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5 = k*5/5
k = 5
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Equation:
# of men = 5*poles/hrs
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Solve "how many men are needed to paint the 15 flagpoles in 15 hours?".
# of men = 5*15/15
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# of men = 5
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Cheers,
Stan H.

Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website!
If 5 men to paint five flagpoles in 5 hours,
:
Find the no. of man-hrs per flag pole
= 5 man-hrs per flag pole
:
how many men are needed to paint the 15 flagpoles in 15 hours?
Let m = no. of men required to accomplish this
15m = 5(15)
15m = 75
m =
m = 5 men