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- Two pipes can fill a tank in 20 minutes and 30 minutes respectively.
Question 1:
Two pipes can fill a tank in 20 minutes and 30 minutes respectively. If both the pipes are opened simultaneously, then the tank will be filled in A. 10 minutes
B. 12 minutes
Feedback Part filled by both pipes in 1 min = (1/20+ 1/30) = 5/60 = 1/12
Time taken to fill the tank = 12 minutes.
Time taken to fill the tank = 12 minutes.
C. 15 minutes
D. 25 minutes
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