Опрос от журнала "8 часов": "Чем Вы питаетесь на работе?"

Give or Take a Little

If r – s = 3p , is p an integer?

(1) r is divisible by 735

(2) r + s is divisible by 3
(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.