Question 1013238
 It takes 15 men to build a house in 120 days.Working at the same rate how many men are needed to build the same house in 75 days? 
---------------
m = k/d
-----
Solve for "k" using "15 men to build house in 120 days"
------
15 = k/120
k = 15*120
-----
Equation::
m = (15*120)/d
-----
Working at the same rate how many men are needed to build the same house in 75 days? 
m = (15*120)/75
---
Ans:: m = 24 
--------
Cheers,
Stan H.
----------