Sally can paint a house in 4 hours and Joe can paint the same house in 6 hours. If they work together how long will it take them to paint the house?



thanks

• 12/5 hours
  One hour work of Sally & Joe=(1/4)+(1/6)=5/12
  So together they will take 12/5 or 2 2/5 hours
• 10 years agoHelpfull: Yes(0) No(0)