Gaurav ranks eighteenth from the top in a class. What is his rank from the last? Statements: 1. There are 47 students in the class. 2. Jatin who ranks 10th in the same class, ranks 38th from the last.
A
I alone is sufficient while II alone is not sufficient
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B
II alone is sufficient while I alone is not sufficient
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C
Either I or II is sufficient
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D
Neither I nor II is sufficient
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E
Both I and II are sufficient
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Solution
The correct option is B Either I or II is sufficient From I, we conclude that in a class of 47 students, Gaurav ranks 18th from the top and hence 30th from the last. From II, we conclude that there are 9 students above and 37 students below Jatin in rank. Thus, there are (9 + 1 + 37) = 47 students in the class. So, Gaurav who ranks 18th from the top, is 30th from the last.