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How many students are there in a row? Statement I: Rahul is 7th from the top and 18th from the bottom of the row. Statement II: Rahul is 7th from the top. Which statement(s) is/are sufficient to answer the question?

Competition practiceData Sufficiency
  • AEither statement alone is sufficient
  • BStatement II alone is sufficient but Statement I alone is not
  • CBoth statements together are needed (neither alone is sufficient)
  • DStatement I alone is sufficient but Statement II alone is not

Step-by-Step Solution

I gives total = 7 + 18 − 1 = 24; II lacks the bottom rank so the total cannot be found.
Answer: D) Statement I alone is sufficient but Statement II alone is not

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