Posted by karen on Thursday, April 8, 2010 at 6:57pm.
paul's rate = house/4
Mike's rate = house/6
combined rate = house/4 + house/6
= 5(house)/12
time for both = house/(5house/12)
= 12/5 = 2.4 hours
Related Questions
math - Amy paints a house in 4 hours and Thomas paints the same house in 6 hours...
algebra - If x paints a house in 2.5 days and x+y can paint the same house in 1....
math - If Sally can paint a house in 4 hours, and John can paint the same house ...
math - If Sally can paint a house in 4 hours, and John can paint the same house ...
math - If Sally can paint a house in 4 hours, and John can paint the same house ...
math - I have trouble solving word problems. Can you help me solve this problem...
math - Suzy can paint a house in 4 hours. Peter can paint the same house in 6 ...
Math - If Sally can paint a house in 4 hours, and John can paint the same house ...
Math - If sally can paint a house in 4 hours and John can paint the same house ...
algebra - It takes 7 hours for Will to paint a house. Judy can paint the same ...
For Further Reading
