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Ratio of copper to tin in the alloy = 3:2 Let the quantity of copper and tin in the alloy be 3x kg and 2x kg, respectively. According to question, 3x = 2x + 10 x = 10 kg So, the quantity of new alloy = 3x + 2x + 10 = 5x + 10 ⇒ 50 + 10 = 60 kg
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1600 metres long train crosses a man who is moving in the same direction with a certain speed in 25 seconds. If the same train can cross a pole in 20 se...
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 crosses a platform in 48 seconds travelling with a speed of 120 km/hr. If the length of the train be 600 metres, then the length (in metres) of ...
