Question
A boat goes 7km an hour in still water, it takes thrice
as much time to go the same distance against the current in comparison to the direction of the current. The speed of the current is (km/h).Solution
Let the speed of the boat in still water =B and speed of stream =S B=6/1=6km/h B+S)B-S 1 (3 (B+S) ×1=(B-S) ×3 B+S=3B-3S 2B=4S S= (2×7)/4=3.5km/h
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
