Question

Who among the three friends A, B and C reached the school first?
(1) A reached the school at 7.15 am five minutes before the bell rang.
(2) B reached before C, who reached the school before the bell rang.

• A. Statement (1) alone is sufficient, but statement (2) alone is not sufficient.
• B. Statement (2) alone is sufficient, but statement (1) alone is not sufficient.
• C. Both statements together are sufficient, but neither statement alone is sufficient.
• D. Statement (1) and (2) together are not sufficient.

Answer 1

Answer: (D)

Statement (1) and (2) together are not sufficient.

(1) $\Rightarrow$ Bell range at 7.15+5=7.20 am
(2) $\Rightarrow$ Both B and C reached the school before 7.20am (using 1). But exact time of reaching can't be determined. Hence, comparison is not possible.