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Ratio of area of two circles = (Ratio of radius)2 = 25:36 Ratio of Circumference = Ratio of radius Hence, Ratio of Circumference = √(25/36) = 5:6
A train crosses a man and a platform that is 480 meters long in 12 seconds and 36 seconds, respectively. Given this information, calculate the speed of ...
If the sum of upstream and downstream speed is 32 km/hr and the speed of the current is 6 km/hr. Then find time taken to cover 44 km in downward?
Speed of a car and a bus is 20 km/h and 12 km/h, respectively. If the time taken by the car to cover a distance of ‘8x’ km is 1 hour less than time ...
John cycles at 10 km/h to reach his destination at 2 PM. If he travels at 15 km/h, he will reach at 12 noon itself. At what speed should he travel to re...
A motor-cycle covers 60 km with a speed of 20 km/hr. find the speed of the motor-cycle for the next 60 km journey so that the average speed of the whole...
A boy can swim a certain distance downstream in 5 hours and return in 7 hours. If the rate of stream is 4 kmph then what is the speed of boy in still wa...
While going to a destination after travelling 75km, the driver noticed some problem in the clutch of the train due to which he had to proceed at 2/5 of ...
1470 metres long train crosses a man who is moving in the same direction with a certain speed, in 30 seconds. If the same train can cross a tree in 7 se...
A tiger chases deer. The deer is 175 leaps ahead of its jumps from tiger. The Deer can jump 6 times in thetime in which the Tiger jumps 4 times. The di...
