Multiple choice

$(\text{The length of First train is 40\% more than the length of second train. Time taken by First train crosses a 200 m long platform whereas second train crosses a person standing on same platform in 25 sec. If speed of both trains are 60 km/hr. and 36 km/hr. respectively.})$ $(\text{Quantity I = Numerical value of the time taken by first train to cross the platform (in seconds).})(\text{Quantity II = Numerical value of the length of second train (in deca meter).})$

  1. Quantity II > Quantity I

  2. Quantity I ≥ Quantity II

  3. Quantity I > Quantity II

  4. Quantity I ≤ Quantity II

  5. Quantity I = Quantity II or relationship cannot be established
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let second train length = L meters. First train = 1.4L meters. Second train crosses person: L = (36×5/18)×25 = 250m. First train length = 350m. First train crosses 200m platform: time = (350+200)/(60×5/18) = 550×3/50 = 33 seconds. Quantity I = 33, Quantity II = 25 (in deca meters). 33 > 25.

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