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Kim and Lee's ages 8 years ago = 7x and 5x Present ages = 7x + 8, 5x + 8 Kim's present age = 40 - 4 = 36 years → 7x = 36 - 8 = 28 → x = 4 Lee's present age = 5(4) + 8 = 28 Ron's present age = (1/4) * 28 + 15 = 22
If the ratio of speed of train C and Train D is 5:8 and takes 20 seconds to completely cross each other in same direction. If the ratio of their length ...
Train A running at speed of 144 km/hr crosses a platform having twice the length of train in 24 sec. Train B whose length is 800m crosses same platform ...
770 metres long train crosses a man who is moving in the same direction with a certain speed, in 35 seconds. If the same train can cross a tree in 22 se...
A train 450 m long running at 72 km/hr takes 45 seconds to cross a bridge The length of the bridge is
Two trains A and B, were proceeding in the same direction on parallel tracks at 25 km/hr and 79 km/hr respectively. A man noticed that it took exactly 1...
A train is running with the speed of 72 kmph crosses a pole in 25 sec. In how much time it can cross a 160 m long platform?
There are two trains A and B. A start from point X at 6 AM towards point Y. Another train B starts at 7 AM from point X. If they meet at 8 AM and...
A train traveling at a velocity of 45 km/h passes a stationary object in 36 seconds. Calculate the time it takes for the train to traverse a platform th...
A train can cross a pole, a bridge of 510 meter long and platform of 450 meter long in 11 seconds, _____ seconds and 26 seconds, respectively.
Th...
1260 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 pole in 21 se...
