SOLUTION: if one faucet fills the sink in 3 minutes and another fills it in 2 minutes, how long will it take both faucets to fill the sink if both are turned on together?
ive tried taking
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Question 691189: if one faucet fills the sink in 3 minutes and another fills it in 2 minutes, how long will it take both faucets to fill the sink if both are turned on together?
ive tried taking the average but i was told it wasnt right without an explanation and then i tried using equations but then i couldnt put it together.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
if one faucet fills the sink in 3 minutes and another fills it in 2 minutes,
how long will it take both faucets to fill the sink if both are turned on together?
:
Let t = time required to fill it with both faucets on
Let the completed job = 1; (a full sink)
:
Each faucet will do a fraction of the job, the two fractions add up to 1
:
+ = 1
Multiply by 6 to clear the denominators, resulting in:
2t + 3t = 6
5t = 6
t = 6/5
t = 1.2 minutes working together
:
:
:
Check this
+ =
.4 + .6 = 1
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