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The correct answer is A
A boy can swim in water with a speed of 12 km/hr in still water. If the speed of the stream is 5 km/hr, what will be the time taken by the boy to cover ...
Two boats X and Y start towards each other from two places, 76 km apart. Speed of the boat X and Y in still water are 8 km/hr and 11 km/hr respectively....
The Speed of the ship in calm water is five times the speed of the stream. If the ship can travel 's + 30' km downstream or 's - 10' km upstream in 5 ho...
Speed of boat is 20 km/hr. Speed of the stream is 20% less than speed of boat. Then find time taken by boat to go 90 km downstream.
Speed of current is equal to 15% of speed of boat in still water. If the boat takes 3 hours to cover 120 km in still water, then find the time taken by ...
The ratio of the speed of boat ‘A’ in still water, the speed of boat ‘B’ in still water and the speed of the current is 7:5:2, respectively. If ...
Speed of a boat in still water is 9 kmph and speed of stream is 6 kmph. A man rows to a place at a distance of 30 km and come back to starting point. Th...
A car has to cover a distance of 240 km in 30 hours. If it covers half of the journey in 3/5 th of the time, the speed to cover the remainin...
Speed of current is 25% of speed of boat in still water, if boat travelled 45 km downstream and returned back in total 12 hr. then find speed of boat i...
A motorboat covers a certain distance downstream in a river in 3 hours. It covers the same distance upstream in 3 and a half an hour. If the speed of th...
