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How many students are there in Priyanka's class? Statement I: Priyanka is 9th from the top. Statement II: Priyanka is 31st from the bottom. Which statement(s) are sufficient to answer the question?

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

Step-by-Step Solution

I alone gives only her rank from the top; II alone only from the bottom. Together: total = 9 + 31 − 1 = 39. Both statements are needed.
Answer: D) Both statements together are needed (neither alone is sufficient)

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