CAT 2020 Slot 2 QA Q19 Time, Speed & Distance

Question 19 of the Quantitative Ability (QA) section, CAT 2020 Slot 2, with CAT's official answer.

Two circular tracks T1 and T2 of radii 100 m and 20 m, respectively touch at a point A. Starting from A at the same time, Ram and Rahim are walking on track T1 and track T2 at speeds 15 km/hr and 5 km/hr respectively. The number of full rounds that Ram will make before he meets Rahim again for the first time is
  1. A
    5
  2. B
    3
  3. C
    4
  4. D
    2

Answer: (B) 3 Time, Speed & Distance MCQ

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