If positive integer x is a multiple of 6 and positive integer y is a multiple of 14,is xy a multiple of 105?
(1) x is a multiple of 9.
(2) y is a multiple of 25.
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.
The product of the units digit,the tens digit,and the hundreds digit of the positive integer m is 96.What is the units digit of
(1) m is odd.
(2) The hundreds digit of m is 8.
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.
第一題答案是B,第二滴題答案是A,希望寫出向出席步驟,