Post a New Question

word problem

posted by .

If steven can mix 20 drinks in 5 minutes, sue can mix 20 drinks in 10 minutes, and jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix 20 drinks.

On this one I believe I would add 5+10+15 but what do I do after that?

  • word problem -

    No, that isn't what you must do. You add the RATES of filling drinks to get the rate that they do it together. Then divide 20 drinks by that rate.

    4 + 2 + (4/3) drinks/min = 22/3 drinks min, combined

    Time required = 20 drinks/(22/3 drinks/min) = 60/22 = 2.73 minutes

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix the 20 drinks?
  2. math

    if Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix the 20 drinks?
  3. math

    If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix the 20 drinks?
  4. math

    If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix the 20 drinks?
  5. math

    Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?
  6. Math

    Jonathan can type a 20 page document in 40 minutes, Susan can type it in 30 minutes, and Jack can type it in 24 minutes. Working together, how much time will it take them to type the same document?
  7. math

    Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1.5 hours. How quickly can all three fill the pool together?
  8. Math - Problem solving

    I used the guess and check method for solving this problem but would like to know how to set up the equation. A camp counselor buys granola bars and juice drinks for the campers. She decides to buy 3 times as many drinks as granola …
  9. how do i set this up to find the answer

    There were 20 drinks in a cooler. Joey drank 15% of the drinks. Sandra drank 1/5 of the drinks. Hannah drank 1/4 of the drinks. Tammy drank 30% of the drinks. How many drinks are left in the cooler?
  10. please help, Word problem

    At a local baseball game, the concession stand has two different meal choices. you can get 3 hotdogs and 5 drinks for $25.00 or you can get 6 hotdogs and 4 drinks for $29.00. If the price of hotdogs and drinks is the same for each …

More Similar Questions

Post a New Question