SOLUTION: 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 t
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-> SOLUTION: 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 t
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Question 271610: 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?
You can put this solution on YOUR website! We can set up the following equation:
(1/30)+(1/45)+(1/90)=1/x Multiply 90x to get:
3x+2x+x=90 Combine like terms:
6x=90 Divide each side by 6 to get:
x=15
There we go. 15 minutes. Working together pays off.
RJ
There's a book you might check out.
www.math-unlock.com
