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Maths Mcqs

Two pipes A and B can fill a tank in 4 and 5 hours respectively. If they are turned up alternately for one hour each, the time taken to fill the tank is?

A. 2 hrs 15 min
B. 4 hrs 24 minCorrect Answer
C. 5 hrs
D. 3 hrs
Correct Option: B. 4 hrs 24 min

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