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A box , contains 1 white ball, 3 red balls and 2 black balls. Another box , contains 2 white balls, 3 red balls and 4 black balls. A third box , contains 3 white balls, 4 red balls and 5 black balls.
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Question 1
In a game, a man wins Rs 100 if he gets 5 or 6 on a throw of a fair die and loses Rs 50 for getting any other number on the die. If he decides to throw the die either till he gets a five or a six or to a maximum of three throws, then his expected gain/loss (in rupees) is: (a) gain (b) loss (c) 0 (d) lossQuestion 2
A fair die is tossed repeatedly until a six is obtained Let X denote the number of tosses required The probability that equals Question 4
Let , be the number of red and black balls, respectively, in box I. Let ,be the number one red and b of red and black balls, respectively, in box II. A ball is drawn at random from box 1 and transferred to box II. If the probability of drawing a red ball from box I, after this transfer, is then the correct option(s) with the possible values of , is(are) 
| Question Text | A box , contains 1 white ball, 3 red balls and 2 black balls. Another box , contains 2 white balls, 3 red balls and 4 black balls. A third box , contains 3 white balls, 4 red balls and 5 black balls. |
