Discussion
A question is given, followed by two statements labelled I and II. Read the question and the statements, and decide whether the data provided in the statements are sufficient/necessary to answer the question.
Question:
What is Salman's rank from the top in a class of 50 students?
Statements:
I. Amir is 15th from the top in the class.
II. There are 5 students between Amir and Salman in the class.
Answer: D
The two statements together are not sufficient. Statement I places Amir 15th from the top. Statement II says there are 5 students between Amir and Salman, so Salman is 5 places beyond Amir on either side: 15 + 6 = 21st from the top, or 15 - 6 = 9th from the top.
Both are possible, because nothing says whether Salman is above or below Amir, so the rank cannot be fixed. Statement I alone gives nothing about Salman and Statement II alone gives no starting rank, so options A and B are wrong, and option C is wrong because even together they leave two answers.
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