## IIT JEE 2006 Paper : MATHEMATICS Section III - Comprehension Passage 2

Each question below has only one correct answer.

In the IIT-JEE, you will be awarded 5 marks for each correct answer and −2 for each incorrect answer.

You will be awarded 0 marks for not attempting a question.

You are given *n* boxes numbered 1 to *n*. The *i*th box contains *i* white and (*n* + 1 − *i*)red balls. Let *E _{i}* and

*W*respectively denote the event of selecting

*i*th box at random and the event that the ball drawn from the selected box is white.