PS (600 Level)

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PS (600 Level)

by Pranavb1302 » Thu Oct 08, 2020 9:52 am
If r, s and t are numbers, is R=60?

(1) The average (arithmetic mean) of r, s and t is 20.
(2) S=T=0

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) EACH statement ALONE is sufficient.
E) Statements (1) and (2) TOGETHER are NOT SUFFICIENT