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Data Sufficiency

Directions to SolveIn each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements andGive answer
  • (A) If the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question
  • (B) If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question
  • (C) If the data either in statement I alone or in statement II alone are sufficient to answer the question
  • (D) If the data given in both statements I and II together are not sufficient to answer the question and
  • (E) If the data in both statements I and II together are necessary to answer the question.

Q1: Question: On which day of the week was birthday of Sahil ? Statements:
  1. Sahil celebrated his birthday the very next day on which Arun celebrated his birthday.
  2. The sister of Sahil was born on the third day of the week and two days after Sahil was born.

A I alone is sufficient while II alone is not sufficient

B II alone is sufficient while I alone is not sufficient

C Either I or II is sufficient

D Neither I nor II is sufficient

E Both I and II are sufficient

ANS:B - II alone is sufficient while I alone is not sufficient

Explanation: I does not mention the day of the week on the birthday of either Arun or Sahil. According to II, Sahil's sister was born on Wednesday and Sahil was born two days before Wednesday i.e. on Monday.



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