Question
Inlet pipes 'A', 'B' fill a tank in 30 and 15 minutes
respectively. Outlet pipe 'C' is 50% less efficient than A. ‘A’ and ‘C’ work for 15 minutes, then 'A' is replaced with 'B'. Find total time to fill the tank.Solution
Tank = 30x units
A = x, B = 2x, C = 0.5x
15 mins: (x - 0.5x) × 15 = 7.5x
Remaining = 30x - 7.5x = 22.5x
Net = 2x - 0.5x = 1.5x
Time = 22.5x / 1.5x = 15 minutes
Total time = 15 + 15 = 30 minutes
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
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