Question
Gatiman express train crosses a platform in 23 seconds
while it can cross a pole in 10 seconds. If the speed of the Gatiman express is 25 m/s, then find the length of the platform?Solution
Length of the train = 25 × 10 = 250 metres Let the length of the platform be ‘p’ metres ATQ; p + 250 = 25 × 23 Or, p = 575 – 250 Or, p = 325
28, 52, 84, 124, 172, ?.
Simplify the expression -:
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