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Start learning 50% faster. Sign in nowLet B joined after x months. A's investment of Rs. 2100 for 12 monts = 2100 × 12 . B's investment of Rs. 3600 for (12-x) months = 3600 (12-x) months They got equal profits. So 2100 × 12 = 3600 (12-x) OR 2100 × 12 = 3600 × 12-3600x 3600 x = (3600-2100) × 12 3600 x = 1500 × 12 So x = 5 HenceB joined after 5 months
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A train 275 metre long takes 33 sec to cross a man running at a speed of 5 km/hr in the direction same to that of train. What is the speed of the train?
A train travels at an average speed of 100 km per hour without stoppage and with stoppages it covers the same distance at an average speed of 80 km/hr. ...
Two trains of same length are running in parallel tracks in the same direction with speed 45 km/hr and 105 km/hr respectively. The latter completely cro...
A 160 m long train crosses another 290 m long train running in the opposite direction in 10 seconds. If the shorter train crosses a pole in 8 seconds, w...
Train ‘A’ can cross a pole in 4 seconds and a 150 metre long platform in 10 seconds. If the ratio of length of train ‘A’ and train ‘B’ is 2:...
