Question
Which element is required for the production of nuclear
energy?Solution
Uranium is commonly used in nuclear reactors.
A train 180 m long is moving at 54 km/h. How much time (in seconds) will it take to cross a pole?
Train ‘A’ travelling with a speed of 90 km/h can cross a pole in 20 seconds. If the length of train ‘B’ is 60% less than that of train ‘A’ a...
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The ratio between the speeds of train J and K is 7:5 respectively. Train J which is (a+140) metre long can cross a pole in 24 seconds. If train K can cr...
Two trains, each 150 meters long, are running in opposite directions. If the speed of one train is twice that of the other and they take 20 seconds to c...
Two trains of same length are running in parallel tracks in the same direction with speed 90 km/hr and 120 km/hr respectively. The latter completely cro...
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