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ATQ, Usual speed of the cyclist = (240/6) = 40 km/h New speed of the cyclist = 0.25 × 40 = 10 km/h New time taken = (240/10) = 24 hours Alternate Solution: Let the usual speed of the cyclist be 10x km/hr. Therefore, decreased speed = 2.5x km/hr Since the distance covered is the same and time taken is inversely proportional to the speed: Ratio of time taken with usual speed to time taken with reduced speed = 6:24 = 1:4 Required time taken = 6 × (4/1) = 24 hours
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The difference between the downstream speed and the upstream speed of a boat is 6km/hr and the boat travels 72km from C to D (downstream) in 4 hours. Th...
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A boat running downstream covers a distance of 42 km in 6 hrs and covering the same distance upstream in 14 hrs. What is the speed of a boat in still wa...
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 72 km downstream?
A boat, whose speed in still water is 25% more than the speed of the current, covers 810 km downstream in _____ hours. The speed of the boat in still w...
A man can go on a motor boat with a speed of 25 km/hour in still water to a certain upstream point and come back to the starting point in a river which ...
A man can row at 4 kmph in still water. If the velocity of current is 2 kmph and it takes him 5 hour to row to a place and come back, how far is the place?
If the sum of upstream and downstream speed is 26 km/hr and the speed of the current is 5 km/hr. Then find time taken to cover 72 km in downward?
