Question Gaurav ranks eighteenth from the top in a class What is his rank from the last Statements T...........

Logical Reasoning(Master ) Data Sufficiency

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Question: Gaurav ranks eighteenth from the top in a class. What is his rank from the last?

Statements:

There are 47 students in the class.

Jatin who ranks 10th in the same class, ranks 38th from the last.

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

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Explanation:

Answer: Option C
Explanation:
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.