If a man cycles at 10 km/hr, then he arrives at a certain place at 1 p.m .If he cycles at 15 km/hr, he will arrive at the same place at 11 am At what speed must he cycle to get there at noon?
Let the total distance be = x km As per question, x/10-x/15=2 hours x = 60 kms If he cycles at the speed of 10 km/hr. so he take = 60/10= 6 hours So he starts his journey at = 7 am and to reach place at 12 pm he should cycles at the speed of = 60/5=12 km/hr
A man can row at 2 kmph in still water. If the velocity of current is 1 kmph and it takes him 4 hour to row to a place and come back, how far is the place?
A boy can swim a certain distance downstream in 5 hours and return in 7 hours. If the rate of stream is 3 kmph then what is the speed of boy in still wa...
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?
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A boat running downstream covers a distance of 50 km in 2(1/2) hrs and the same distance upstream in 10 hrs. What is the speed of the boat in still water?
Speed of a boat in still water is 4 times more than the speed of stream. If boat covers 126 km in downstream in 7 hours, then find the time taken by the...