Discussion :: Data Sufficiency
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At what time did Rahul leave home for office?
I. Rahul had his breakfast at 9:20 am at home.
II. Rahul reached office at 10:20 am, 30 minutes after he left home.
A.
Statement I alone is sufficient, but statement II alone is not sufficient
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B.
Statement II alone is sufficient, but statement I alone is not sufficient
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C.
Either I or II is sufficient
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D.
Data in both the statements together are not sufficient
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E.
Both I and II are needed
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Answer : Option B
Explanation :
The statement I alone is not sufficient. The statement II reveals that Rahul left home 30 minutes before 10:20 am, i.e., at 9:50 am. So, statement II alone is sufficient.
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