Question
A train running with a speed of 45 km/hr can cross a
pole in 10 seconds and a platform in 20 seconds. Find the length of the platform.Solution
Speed of the train = 45 × (5/18) = 12.5 m/sec Length of the train = 12.5 × 10 = 125 metres Let the length of the platform be ‘x’ metres Therefore, 125 + x = 12.5 × 20 Or, x = 250 – 125 = 125 metres
Which among the following crops is considered a typical C4 plant, exhibiting high photosynthetic efficiency under high temperature and light intensity c...
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