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 $$\frac 7 {15}$$.