Question
Train X running at a speed of 32 km/hr crosses train Y
in 20 seconds. Find the speed of train Y (in km/hr), if the sum of the length of train X and Y is 650 meters and both trains running in the opposite direction.Solution
Let speed of train Y be 'a' km/hr. According to question, => 20(32 + a) × (5/18) = 650 => 640 + 20a = 2340 => 20a = 1700 => a = 85 km/hr
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