Question Paper from: IBPS PO Mains 2017

Direction: The following question consists of few statements along with it. You have to determine which of the following statement/statements are necessary to answer the question. 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 lights in the box are defective, what is the value of n?

I. The probability that the two tube lights to be 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.

1:
Only statement I is sufficient
2:
Only statement II is sufficient
3:
Both statement I and II are sufficient
4:
Statement I or statement II alone is sufficient
5:
Neither statement I nor statement II is sufficient
Solution:
Chapter Name: Data - Sufficiency

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IBPS PO Mains 2017

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