Two taps A and B can fill a bathtub in 10 minutes and 15 minutes respectively. If A was open for the first two minutes, B for the next two minutes and so on, the bathtub is

Two taps A and B can fill a bathtub in 10 minutes and 15 minutes re

1.	Two taps A and B can fill a bathtub in 10 minutes and 15 minutes respectively. If A was open for the first two minutes, B for the next two minutes and so on, the bathtub is
A.	6 minutes
B.	12 minutes
C.	12.5 minutes
D.	24 minutes
Answer» C. 12.5 minutes

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Two taps A and B can fill a bathtub in 10 minutes and 15 minutes respectively. If A was open for the first two minutes, B for the next two minutes and so on, the bathtub is

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