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You are given a question and three statements. Identify which of the statement(s) is/are necessary/sufficient to answer the question. Question : There are 4 children I, J, K and L whose heights are to be compared. Who among these is tallest? Statement : 1. I is taller than L. 2. L is younger than K. 3. J is younger than L.

You are given a question and three statements. Identify which of the statement(s) is/are necessary/sufficient to answer the question. Question : There are 4 children I, J, K and L whose heights are to be compared. Who among these is tallest? Statement : 1. I is taller than L. 2. L is younger than K. 3. J is younger than L. Correct Answer Statements 1, 2 and 3 together are insufficient.

1. I is taller than L.

  • I > L
  • Here, there is no information given about the heights of J and K. Therefore, statement 1 alone is not sufficient and option 4 is wrong

2. L is younger than K.

  • L < K
  • No information is given about the heights of I and J. Therefore, statement 2 alone is not sufficient and option 3 is wrong.

3. J is younger than L.

  • J < L
  • No information is given about the heights of I and K. Therefore, statement 3 alone is not sufficient.

 

  • From statements 1, 2, and 3, we get the following cases:
    • Case 1: J < L < I < K
    • Case 2: J < L < K < I
    • Thus, either I or K is the tallest. There is no definite answer.
  • So, statements 1, 2, and 3 together are insufficient.

Hence, "option 2" is the correct answer.

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