alleryPipes fill a tank in 12 and 18 minutes. Both run for 6 minutes. The fraction filled is
A5/6
B1/2
C3/4
D2/3
Answer & Solution
Correct answer: A. 5/6
Combined rate is 1/12 + 1/18 = 5/36, and 6 minutes gives 30/36 = 5/6.
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