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Verbal Reasoning - Data Sufficiency - Discussion

Discussion Forum : Data Sufficiency - Section 1 (Q.No. 18)
Data Sufficiency
Directions to Solve

In 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 and

Give 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.

18.

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.

I alone is sufficient while II alone is not sufficient
II alone is sufficient while I alone is not sufficient
Either I or II is sufficient
Neither I nor II is sufficient
Both I and II are sufficient
Answer: Option
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.

Discussion:
14 comments Page 2 of 2.
Savita said:   8 years ago
The 3rd day of the week is Tuesday @Krishna.
Poojitha said:   5 years ago
The week starts by Sunday not Monday.
(3)
Widi said:   4 years ago
But they are asking us about the day of the week he celebrated his birthday. And statement II gives info about the day on which he was born! without knowing his age and years how can we predict his day of the week of his birthday? Anyone clarify.
(1)
Ssddd said:   3 years ago
The answer is E. We need to find Sahih's birthday.

According to statement 1 we need to find his friend's birthday. Statement 2 provides the day of his friend's birthday. So both Statement is needed.
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