Question
The element used in the manufacture of safety matches is
—Solution
The correct answer is A
Two trains ‘T5’ and ‘U5’ of lengths 800 metres and 400 metres respectively are travelling towards each other. Ratio of speed of ‘T5’ to ‘U...
A train has to cover a distance of 90 km in 15 hours. If it covers half the journey in 4/5 th of the time, the speed to cover remaining distance in the ...
- A train moving at 32 m/s can pass through a bridge of length 500 metres in 25 seconds. Find the length of the train.
- Train 'P' can cross a pole in 8 seconds and a 160 metres long bridge in 12 seconds. Train 'Q' whose length is 60% of the length of train 'P' runs in the sa...
Train 'C' can cross a pole in 6 seconds and a 120 metres long bridge in 10 seconds. Train 'D' whose length is 25% of the length of train 'C' runs in the...
Train P travelling at 55 km/hr crosses another train Q, having three fourth of its length and travelling in opposite direction at 35 km/hr in 14 seconds...
- A man is running at a speed of 10 m/sec in the same direction of the train. Train can cross the man in 6 seconds. If speed of the train is 108 km/hr, then ...
Train A running at a speed of 42 km/hr crosses train B in 36 seconds. Find the speed of train B (in km/hr), if the sum of the length of train A and B is...
Two trains approach each other at 20 kmph and 25 kmph from 2 places 225 km apart. After how many hours they will meet?
Two trains of equal lengths take 20 seconds and 30 seconds respectively to cross a telegraph post. If the length of each train be 240 metres, in what ti...
