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Start learning 50% faster. Sign in nowExplanation: The primary objective of the Montreal Protocol is to regulate and phase out ozone-depleting substances (ODS) to protect the stratospheric ozone layer.
Two trains ‘A’ and ‘B’ started from station ‘P’ and ‘Q’ towards station ‘Q’ and ‘P’ respectively at the same time. When they met...
750 metres long train crosses a man who is moving in the same direction with a certain speed, in 50 seconds. If the same train can cross a tree in 20 se...
Two trains approach each other at 15 kmph and 25 kmph from 2 places 280 km apart. After how many hours they will meet?
Train ‘A’ running with a speed of 108 km/hr crosses a vertical pole in 10 seconds. Find the approx. time taken by the train ‘A’ ...
350 metre long train ‘A’ is running with a speed of 43.2 km/hr. Train ‘B’ which is 387 metre long is running with a speed of 90 km/h in opposite...
A train started from station P and preceded towards station Q at a speed of 84 km/h. 40 minutes later, another train started from station Q and preceded...
A train 250 metre long takes 25 sec to cross a man running at a speed of 9 km/hr in the direction same to that of train. What is the speed of the train?
A train of length 287 m, running at 80 km/h, crosses another train moving in the opposite direction at 37 km/h in 18 seconds. What is the length of the ...
Train A running at a speed of 46 km/hr crosses train B in 30 seconds. Find the speed of train B (in km/hr), if the sum of the length of train A and B is...
