Multiple choice

Following question consists a question and two statements numbered I and II. You have to decide whether the data provided in the statements are sufficient to answer the question or not. How many trains arrives at station-B? (I) The ratio of total number of trains arriving at station A and B is 2 : 3. (II) Total 120 trains departs from station B and 80% of the total trains of station-B arrives at station-B.

  1. Only II

  2. Only I

  3. Both from I and II

  4. Any one of the two.

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement I: Ratio of trains at A:B = 2:3, but no absolute numbers. Insufficient alone. Statement II: 120 trains depart from B, and 80% of station-B trains arrive at B. So trains arriving at B = 80% of 120 = 96. Statement II alone is sufficient. However, both together also work and give same answer. The claimed answer C (both) is marked correct, but technically only II is needed.

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