Question
Which of the Following is not the Ore of Aluminium ?
Solution
Trona is the ore of Sodium (Na).
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...
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Train 'A' takes 36 seconds to pass a boy standing on a platform, moving at a speed of 15 m/sec. The speeds of trains 'A' and 'B' are in the ratio of 5:6...
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