A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely? | MCQ Hive

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Q A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?

A A. 3 hrs 15 min
B B. 3 hrs 45 min
C C. 4 hrs
D D. 4 hrs 15 min

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