Discussion :: Data Sufficiency
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Sohan ranks fifth in the class. How many students are there in the class?
I. His friend ranks 52th which is the last rank in the class.
II. Sohan's rank from the last is 48th.
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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 C
Explanation :
The statement I shows that 52th is the last rank in the class. It means there are 52 students in the class.
Statement II shows that Sohan ranks 48th from the last and it is also given that Sohan ranks fifth in the class. It means, there are (5+48-1) = 52 students in the class. Thus, either I or II is sufficient.
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