ALgebra word problem

posted by .

susan can paint a chair in 3 hours. jerry can paint in the same size 2.5 hours. working together, how long will it take to paint 10 chairs?

  • ALgebra word problem -

    Susan's rate = 1/3
    Jerry's rate = 1/2.5
    combined rate = 1/3 + 1/2.5 = 11/15

    so time taken to do one chair = 1/(11/15) = 15/11

    so to do 10 chairs will take 10(15/11) hours
    or 13.636 hours. or 13 hours and appr. 38 minutes

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Word problem

    Edward can paint a bedroom in 3hr. Jeb can paint the same room in 3.75 hours. How long will it take them, working together, to paint the bedroom?
  2. math

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

    I have trouble solving word problems. Can you help me solve this problem?
  4. Intermediate Algebra

    Joe can paint a room in 6 hours while Sue can paint the same room in 5 hours. Working together, how long would it take them to paint the room?
  5. Math

    A painter can paint a racquetball court in 8 hours. His assistant needs an additional 2 hours to paint the same court working by himself. How long will it take both of them working together to paint the court.
  6. algebra

    It takes 7 hours for Will to paint a house. Judy can paint the same house in 3 hours. How long will it take them to paint the house if they work together?
  7. Intermediate Algebra

    A painter can paint a fence in 12 hours working alone. His apprentice who works slower can paint the same fence in 24 hours. How many hours would it take to do the job if they worked together?
  8. Intermediate Algebra

    A painter can paint a fence in 12 hours working alone. His apprentice who works slower can paint the same fence in 24 hours. How many hours would it take to do the job if they worked together?
  9. math

    mr. smith pants 5 wooden chairs in 4 hours. if each chair takes the same amout of time to paint, what fraction of an hour does it take mr. smith to paint one chair?
  10. Algebra

    Sally can paint a room in 4 hours while it takes Steve 7 hours to paint the same room. How long would it take them to paint the room if they worked​ together?

More Similar Questions