Post a New Question

math

posted by .

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 both of them to paint the house?

the answer is 2 hrs and 24 min. How did they come up with that?

  • math -

    In twelve hours, sally can paint 3, and john 2, or five houses together.

    combined rate=5houses/12hours

    1house=rate*time=5/12 * time
    time= 12/5 hrs

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    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 both of them to paint the house together?
  2. math

    If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
  3. math

    I have trouble solving word problems. Can you tell me the best approach to solve this word problem?
  4. math

    I have trouble solving word problems. Can you help me solve this problem?
  5. Math

    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 them to paint the house together?
  6. math

    If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
  7. algebra

    If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
  8. math

    If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
  9. math

    If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
  10. math

    If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take both of them to paint the house together?

More Similar Questions

Post a New Question