Posted by N on Tuesday, March 3, 2009 at 12:22pm.
If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for the to pain the house together?

math  bobpursley, Tuesday, March 3, 2009 at 12:31pm
In 24 hours, both of them can paint 6+4 houses, or 10 houses.
So the combined rate is 10houses/24hrs, or one house per 2.4 hours.

math  Anonymous, Tuesday, March 3, 2009 at 12:33pm
From the information I have they are saying it should be 2 hours and 24 minutes. Can you explain?
Answer This Question
Related Questions
 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  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  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  If Sally can paint a house in 4 hours, and John can paint the same ...
 math  I have trouble solving word problems. Can you tell me the best approach ...
More Related Questions