Data Sufficiency · Question 7 · Medium
Data Sufficiency question 7
Each question has two statements. Decide whether the data in the statements is sufficient to answer the question.
Question: What day of the week is 20 March of a certain year?
I. 1 January of that year is a Wednesday.
II. 14 March of that year is a Thursday.
- Statement I alone is sufficient
- Statement II alone is sufficient
- Both statements together are needed
- Both statements together are not sufficient
Answer and explanation
Answer: B. Statement II alone is sufficient
Explanation: From II, 20 March is 6 days after Thursday, i.e. a Wednesday. From I alone we cannot tell, because the answer depends on whether February has 28 or 29 days, which is not given.
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