Two pipes A and B can fill a tank in 12 and 15 minutes respectively. Both are opened together but after 3 minutes the first is turned off. How much longer will the tank take to fill ? 1) 8 ¼ 2) 6 2/3 3) 5 1/3 4) 5 3/5
Two pipes A and B can fill a tank in 12 and 15 minutes respectively. Both are opened together but after 3 minutes the first is turned off. How much longer will the tank take to fill ?
1) 8 ¼
2) 6 2/3
3) 5 1/3
4) 5 3/5