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kindly answer Q.No.4 (a) A drawer contains 150 bolts and 50 nuts. Half of the bolts and half of the nuts are rusted, If one

kindly answer

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Q.No.4 (a) A drawer contains 150 bolts and 50 nuts. Half of the bolts and half of the nuts are rusted, If one item is chosen at random, what is the probability that it is rusted or is a bolt? (b) Box A contains 4 green, 4 red and 5 black balls. Three balls are drawn from the box together. Find the probability that they may be all of different colours

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