SOLUTION: Jill can fill a pool by carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the job in an hour and a half. How quickly can all three fill th
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Question 368877: Jill can fill a pool by carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the job in an hour and a half. How quickly can all three fill the pool together?
a: 12 minutes
b: 15 minutes
c: 21 minutes
d: 23 minutes
e: 28 minutes
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Jill's rate:
Sue's rate :
Tony's rate:
.
.
.
All together, their rate is
Rate*Time=Output
Time=Output/Rate
minutes
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