SOLUTION: If 8 men paint a school in 15 days, how many days will 12 men take to paint a similar school, assuming that they work on the same rate?

Algebra.Com
Question 1059214: If 8 men paint a school in 15 days, how many days will 12 men take to paint a similar school, assuming that they work on the same rate?
Found 2 solutions by josgarithmetic, stanbon:
Answer by josgarithmetic(39630)   (Show Source): You can put this solution on YOUR website!
One job is "paint the school".
r is rate for one man.
x is the unknown number of days to paint.


Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
If 8 men paint a school in 15 days, If 8 men paint a school in 15 days, how many days will 12 men take to paint a similar school, assuming that they work on the same rate? , assuming that they work on the same rate?
-------------------
# of men and # of days to paint are inversely related.
--------------------
d = k/m
-------------------
Solve for "k"::
15 = k/8
k = 120
--------------------
Equation:
d = 120/m
-------------------
how many days will 12 men take to paint a similar school, assuming that they work on the same rate?
------
Ans: d = 120/12
# of days = 10
----------------
Cheers,
Stan H.
-----------------

RELATED QUESTIONS

If 8 men can paint a school in 15 days, how many days would it take for 12 men to paint... (answered by jorel555)
A contractor estimates that he can paint a house in 5 days by using 6 men. if he actully... (answered by ankor@dixie-net.com)
It takes 5 men to paint 2 identical houses in 3 days. Assuming that all men work at the... (answered by stanbon)
A can paint a certain house in 10 days and B can paint the same house in 12 days. How... (answered by Alan3354)
Jose can paint a house in 10 days and peter can paint the same house in 12 days . how... (answered by nerdybill)
three men paint a house in 5 days. How long will it take 2 men to paint the... (answered by ewatrrr)
three men paint a house in 5 days. how long will it take 2 men to paint the... (answered by Alan3354)
17 men can paint a wall in 6 days. How long will 2 men take to paint the same... (answered by stanbon)
if it takes six men to paint a house in 21 days, how many men will be needed to paint the (answered by josgarithmetic)