If both pipes are open, then total units per hour empty the tank (A-B) = 5-8 = -3 units According to question, Tank has 3/5 of its total capacity in the beginning 3/5 × 80= 48 units Time taken to empty the tank = 48/(-3) = 16 hours.
-20, -16, -7, 9, 31, 70
5 11 23 43 85 171 341
...14, 16, 22, 46, 172, 886
8 10 36 216 2592 62208
Find the wrong number in given number series.
1687, 1666, 1618, 1549, 1457, 1342.
256 768 96 288 35 108
334, 301, 271, 251, 239, 233
8 12 21 36 62 98
1024, 1056, 1096, 1144, 1196, 1260
71 81 61 101 51 181
