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 The question given below has few statements along with it. You have to determine which of the statement/s is/are sufficient/necessary for answering the question and mark your answer accordingly:

A box contains 10 tube lights, fewer than half of which are defective. Two tube lights are to be drawn simultaneously from the box. If N of the tube lights in the box which are defective, what is the value of N?

I. The probability that both tube lights have drawn will be defective is 1/15. 
II. The probability that one of the tube lights to be drawn will be defective and the other will not be defective is 7/15.

[IBPS PO mains 2017]
A
B
C
D
E