Two pipes can fill a tank in 10 hours and 12 hours respectively while a third pi May 24, 2022 by admin ✪ Choose the correct option.Two pipes can fill a tank in 10 hours and 12 hours respectively while a third pipe empties the full tank in 20 hours.If all the three pipes operate simultaneously, in how much time will the tank be filled?A. 7 hr 30 minB. 7 hrs 45 minC. 8 hrs 30 minD. 8 hrs 45 min Submit Answer
