Verbal Reasoning - Data Sufficiency - Discussion

Discussion Forum : Data Sufficiency - Section 1 (Q.No. 12)
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.


12.

Question: On which date of the month was Anjali born in February 2004 ?

Statements:

  1. Anjali was born on an even date of the month.
  2. Anjali's birth date was a prime number.

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:

From I and II, we conclude that Anjali was born in February 2004 on a date which is an even prime number. Since the only even prime number is 2, so Anjali was born on 2nd February, 2004.

Discussion:
3 comments Page 1 of 1.

Saran said:   7 years ago
First statement: the year 2004 is a leap year.

So February 29 days.

Second statement: birthday date was prime no so the date is among;
2, 3, 5, 7, 11, 13, 17, 19, 23, 29.

By combining these two statements we get.

The only even number in the above prime numbers is #2.

So the answer is E.
(1)

Revathi said:   7 years ago
How can you justify that's even prime?

In the first statement, it was given that on EVEN DATE only.
In the second statement, it was given that PRIME only.
From 1 to 28 we have more even numbers. likewise, we have prime numbers from 1 to 28.

Please, explain the answer.

Harika said:   1 decade ago
I am not understanding anything can anyone give brief explanation about data sufficiency?
(1)

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