SOLUTION: if it takes sally 4 hours to paint a house and it take john 6 hours to paint the same house, then how long will it take both of them at the same time?

SOLUTION: if it takes sally 4 hours to paint a house and it take john 6 hours to paint the same house, then how long will it take both of them at the same time?

Algebra.Com

Question 23731: if it takes sally 4 hours to paint a house and it take john 6 hours to paint the same house, then how long will it take both of them at the same time?
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
Sally paints 1/4 of house in one hour
John paints 1/6 of house in one hour
1/4 + 1/6 = 3/12 + 2/12

5/12 = 12/5 = 2.4
Hence together they paint the house in 2.4 hours.

RELATED QUESTIONS
IF IT TAKES SALLY 4 HOURS TO PAINT A HOUSE AND IT TAKES JOHN 6 HOURS TO PAINT THE SAME... (answered by funmath)

If it takes Sally 4 hours to paint a house and John 6 hours to paint the same house, how... (answered by stanbon,RAY100)

If Sally can paint a hous3e in 4 hours, and john can paint the same house in 6 hours, how (answered by stanbon)

If it takes sally 4 hours to paint house and Jim 6 hours to paint house. how long will it (answered by solver91311)

sally can paint a house in 4 hours john can paint the same house in 6 hours how long... (answered by MathLover1)

if sally can paint a house in 4 hours, and john can paint the same house in 6 hours how... (answered by AnlytcPhil)

If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how... (answered by stanbon)

If Sally can paint a house in 4 hours and John can paint the same house in 6 hours. How... (answered by richwmiller,Earlsdon)

If Sally can paint a house in a 4 hours, and John can paint the same house in 6 hours,... (answered by richwmiller,Alan3354,Edwin McCravy)