Let a = tap A time.

Then tap b is A+2

They fill the tub 4 times in 5 minutes.

Solve for a and b will be two minutes more.

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- May 24th 2008, 09:36 AM #1

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- May 24th 2008, 09:53 AM #2

- May 24th 2008, 10:01 AM #3

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- May 24th 2008, 10:19 AM #4
Hi, finch41. As galactus explained, is the amount of time it takes tap A to fill 1 tub. That means tap A fills 1 tub per minutes, so the rate is . Similarly, tap B takes minutes (2 minutes more than tap A) to fill the tub, so it has a fill rate of 1 tub per minutes, or . But, when both taps are on, they fill 4 tubs every 5 minutes, so we have a rate of . This gives us the equation,

Solve for .