Priya ranks tenth in a class. How many students are there in the class?
I. Her friend got 58th rank which is the last.
II. Priya's rank from the last is 49th.
I reveals that 58th is the last rank in the class.
This means that there are 58 students in the class.
So, I alone is sufficient.
Also, from II, we find that Priya's rank in the class is 10th from the top and 49th from the last.
So there are 58 students in the class.
Thus II alone is sufficient.
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