Question

What is the value of the two-digit number N? Statement I: The sum of the digits of N is 9. Statement II: N is equal to 45.

• A. Statement I alone is sufficient, but statement II alone is not sufficient.
• B. Statement II alone is sufficient, but statement I alone is not sufficient.
• C. Both statements together are sufficient, but neither statement alone is sufficient.
• D. Each statement alone is sufficient.

Hint:

Which statement gives exactly one possible number?

Answer 1

The Correct Option is B

A unique value needs a single answer. Statement I allows several candidates, so it cannot pin N, while Statement II names N outright. Hence only II suffices.