Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.
What is Keshav's rank in a class of 50 ?
I. Amit, ranking 18th in the class from the top, is 7 ranks below Vivek, who is 5 ranks above Keshav:
II. Saurav, the 10th from the bottom, is 20 ranks below Suresh, who is 5 ranks below Keshav.

Options

A. if the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question
B. if the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question
C. if the data either in statement I alone or in statement Il alone are sufficient to answer the question
D. if the data given in both statements I and II together are not sufficient to answer the question

Answer

C

Explanation

From statement I:
Amit.s rank from the top = 18th.
Vivek.s rank from the top = 18 -7 - 11th
Keshav.s rank from the top = 11 +5= 16th
So, Statement I is sufficient.
From statement II:
Saurav.s ránk from the bottom= 10th
Saurav.s rank from the top `= (50 - 10)+ 1= 41` st
Suresh.s rank from the top = 41 - 20 - 21st
Keshav.s rank from the top=21-5= 16th
So, statement Il is sufficient.
Therefore, data in statement I alone or in statement II alone are sufficient to answer the given question.