Question
A and B can fill a tank in 25 and 30 hours respectively.
C empties it in ‘x’ hours. With all three open, the tank is filled in 15 hours. Find ‘x’.Solution
Let the capacity of the tank = 150 liters (LCM of 25, 30, and 15)
Amount of water filled by pipe A in one hour = 150 ÷ 25 = 6 liters
Amount of water filled by pipe B in one hour = 150 ÷ 30 = 5 liters
Amount of water filled by pipes A, B and C together in one hour = 150 ÷ 15 = 10 liters
Amount of water taken by pipe C alone in one hour = 6 + 5 – 10 = 1 liter
Time taken by pipe C alone to empty the tank = 150 ÷ 1 = 150 hours
The following numbers form a series. Find the odd one out.
7, 11, 19, 35, 67, 131
Find the wrong number in the given number series,
54, 58, 67, 92, 139, 262
There are two wrong number series given in question and three relationships has been derived from that you have to answer the correct relationship betwe...
The following numbers form a series. Find the odd one out.
500, 1012, 963, 1185, 1154, 1218
27, 35, 51, 75, 109, 147
216, 432, 144, 288, 96, 191, 64
53, 57, 66, 82, 117, 143, 192
Find the wrong number in the given number series.
70, 94, 130, 182, 274, 406
Find the wrong number in given number series.
136, 184, 250, 304, 376, 456
98, 128, 162, 200, 244, 288
