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 3 hrs 15 min
B 3 hrs 45 min
C 4 hrs 15 min
D None of these

Correct Answer: 3 hrs 45 min

1 tap full = 6 hurs 1 tap half = 3 hrs 4 tap half = 3/4 hrs = 45 min ∴ Total = 3 hrs 45 min
Bissoy MCQ
#গণিত #নল ও চৌবাচ্চা (Pipes and cistern) #Probashi Kallyan Bank #এক্সিকিউটিভ অফিসার (সাধারণ) ১৮.১০.২০১৯

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