Multiple choice

A train of length x meters travelling at the speed of 54 km per hour can cross a boy standing on a platform in 16 seconds but at the speed of 72 km per hour it can cross a platform of y meters long in 24 seconds. Quantity I: What is the length of the train? Quantity II: What is the length of the platform?

  1. Quantity I > Quantity II

  2. Quantity I ≥ Quantity II

  3. Quantity I < Quantity II

  4. Quantity II ≥ Quantity I

  5. Quantity I = Quantity II or relation can't be established
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

From statement 1: x / (54×5/18) = 16, so x = 240m (train length). From statement 2: (x+y) / (72×5/18) = 24, so x+y = 240m. Since x = 240m, y = 0m which is unrealistic. Both quantities equal 240m, so relation is 'equal'.

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