A tap can fill a tank in 2 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
Choose the correct answer
A) 1 hr 15 mins	B) 2 hr 15 mins	C) 3 hr 15 mins	D) 1 hr 25 mins	E) 1 hr 35 mins
Explanation:   A tap can fill a tank in 2 hours.   Therefore the tap can fill half the tank in 1 hours.   One tap take time to fill half of the tank = 1 hrs   4 taps take time to fill half of the tank = 1/4 hrs = 15 minutes   Total time taken to fill the tank = 1 hr+15 mins = 1 hr 15 mins   1 hr 15 minsnswer : 1 hr 15 mins
<result>A</result>
A tap can fill a tank in 2 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?