Question
In a fixed time, a boy swims thrice the distance along
the current that he swims against the current. If the speed of the current is 4 km/hr, the speed of the boy in still water isSolution
Let the rate of swimming in still water be x km/hr Rate down-stream = (x + 4) km/hr Rate up-stream = (x – 4) km/hr According to the question, (x + 4) t = 3 (x – 4) × t x + 4 = 3x – 12 x = 8 km/hr
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The political retoric of foreign aggression is backed up by very brisk policing at home.
...Directions: In each question below, four words printed in bold type are given. These are numbered (A), (B), (C) and (D). One these words printed in bol...
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The recent study emphasized (1) the need to address climate change through sustainable (2) farming practices and encouraged farmers to adopt innovative...
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India is one of their favourite destinations for this trail .
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