题目信息
A box contains 10 light bulbs, fewer than half of which are defective. Two bulbs are to be drawn simultaneously from the box. If n of the bulbs in box are defective, what is the value of n?
(1)The probability that the two bulbs to be drawn will be defective is $$\frac 1 {15}$$.
(2)The probability that one of the bulbs to be drawn will be defective and the other will not be defective is $$\frac 7 {15}$$.
(1)The probability that the two bulbs to be drawn will be defective is $$\frac 1 {15}$$.
(2)The probability that one of the bulbs to be drawn will be defective and the other will not be defective is $$\frac 7 {15}$$.
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 statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D:EACH statement ALONE is sufficient.
E:Statements (1) and (2) TOGETHER are NOT sufficient.
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正确答案:
D:EACH statement ALONE is sufficient.
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