Students are sitting in a row in which the position of X is 17th from the left and that of Y is 14th from the right. If they interchange their positions, X's position becomes 7th from the left. How many students are there in the row?
Consider the given question and decide which of the following statements is sufficient to answer the question.
What is X's rank from the top in a class of 50 students?
Statements:
1. Y's rank is 4 ranks below that of X and 30th from the bottom.
2. Z's rank is 2 ranks above that of X and 32nd from the bottom.
A.
1 alone is sufficient while 2 alone is not sufficient to answer the given question
B.
2 alone is sufficient while 1 alone is not sufficient to answer the given question
C.
Either 1 or 2 is sufficient to answer the given question
D.
Both 1 and 2 are sufficient to answer the given question
Consider the given question and decide which of the following statements is sufficient to answer the question.
How old was X on 15 January 2017?
Statements:
1. X is 50 years older than his brother Y.
2. Y is 20 years younger than his mother.
A.
2 alone is sufficient while 1 alone is not sufficient to answer the given question
B.
Neither 1 nor 2 is sufficient to answer the given question
C.
1 alone is sufficient while 2 alone is not sufficient to answer the given question
D.
Both 1 and 2 are sufficient to answer the given question