CBSE Class 12 Mathematics Question paper 2005 (2). Students can download the last year question papers using the link below. Free download of examination question papers with solutions.Last 10 year question papers should be practised to get better marks in examinations.
1..Using properties of determinants, show that
2.There are 5% defective bulbs of bulbs. What is the probability that a sample of 10 bulbs. Will includes not more than 1 defective bulb? (Use e -0.5 = 0.6065).
3.Two bags A and B contain 2 white, 4 red; and 3 white, 3 red balls respectively. One of the bags is selected at random and a ball is drawn from it. If the selected ball is of white colour, find the probability that it is drawn from bag A.
4. A and B are partners sharing profit and losses in the ratio 1 : 2 respectively. They admit C as a new partner, the new profit sharing ratio being 1 : 2 : 2 between A, B and C,respectively. C pays Rs.12,000 as premium for goodwill. How will the premium be shared between A and B?
5. Two cards are drawn successively with replacement from a well- shuffled pack of 52 cards. Find the mean and variance for the number of aces.
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