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What is D's rank from the top in a class? Statement I: D is 7th from the bottom. Statement II: There are 30 students in the class. Which statement(s) is/are sufficient to answer the question?

Competition practiceData Sufficiency
  • AStatement I alone is sufficient but Statement II alone is not
  • BBoth statements together are needed (neither alone is sufficient)
  • CStatement II alone is sufficient but Statement I alone is not
  • DEither statement alone is sufficient

Step-by-Step Solution

Rank from top = 30 − 7 + 1 = 24, which requires both the class total and the bottom rank.
Answer: B) Both statements together are needed (neither alone is sufficient)

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