Question
A train running with 90km/hr takes 25sec to cross a
platform 250 m long. How much it take to cross a stationary train having length of 75m ?Solution
250+L =Â 90Â Ă—Â (5/18)Â Ă—Â 25 L= 375m 375 + 75 = 90Â Ă—Â (5/18)Â Ă—Â t So, t = 18sec.
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