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A car covers first half of its journey at the rate of 15km/h and second half at the rate of 12km/h and total time taken to complete the journey is 9 hours. Find the length of journey.
A bus complete a certain journey in 19 hours. It covers first half of the distance at a rate of 15 km/h and second half at the rate of 20 km/h. The length of journey is …………
A student walks from his house at 2 km/h and reaches school 5 minutes late and if his speed had been 3 km/h he would have reached the school 5 minutes earlier. How far is his school from house?
A person walks from his house at the rate of 6 km/h and reaches office 12 minutes late and if his speed had been 8 km/h he would have reached the office 8 minutes earlier. How far is his office from house?
By walking 3/2 of his usual speed a person reach his office 10 minutes earlier. Find his usual time.
Byof 2/5 his usual speed a student reach his school 30 minutes late. Find his usual time?
A train whose length is 300m long is moving at the rate of 108 km/h. How long will it take to pass a pole?
How long does a train 200 m long moving at the rate of 72 km/h take to pass a tunnel 40 m long?
How long does a train 600 m long moving at the rate of 144 km/h take to pass a bridge 200 m long?
Two trains of 400 m and 350 m long are running on parallel tracks at the rate of 180 km/h and 120 km/h respectively. How long will they take to cross each other if they are running in opposite direction?
Two trains 500 m and 200 m long are running on parallel tracks at the rate of 160 km/h and 200 km/h. How long the second train take to cross 1st train if they are running in same direction.
A train crosses a platform of length 350 m in 12 sec and a man standing on platform in 2 sec. Find the speed of train.
A man moves downstream at a rate of 14 km/h and upstream at a rate of 6 km/h. Find his speed in still water.
A man moves downstream at a rate of 14 km/h and upstream at a rate of 6 km/h. Find his speed in still water.
A boat moves down the stream at the rate of 20 km/h and it takes 12 minutes for him to move one km against it. Find the speed of stream.
A man can swim 4 km/h in still water. If the velocity of stream is 2 km/h, the time taken by him to swim to a place 12 km upstream and back is:
A man can row three quarter of a km against the stream in min. and return in min. The speed of man in still water is.
A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is:
The speed of a boat upstream is 10 km/h. The speed of stream is 5 km/h. The speed of boatdown stream is.
A thief steals a car at 9 am and drive at the rate of 20 km/h. The theft is discovered and police starts chasing him at 9.30 am. in a jeep at the speed of 40 km/h. The thief will be caught at ………
46 videos69 docs95 tests

46 videos69 docs95 tests
