147.A bag contains 3 red balls and 5 black balls. A ball is drawn at randome from the bag. What is the probability that the ball drawn is red? Sol. No. of red balls = 3 No. of black balls = 5 Total no. of balls = 3 + 5 = 8 i.e. n(s) = 8
Let A be the favourable outcomes of getting a red ball, then n (A) = 3 Therefore,
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148.One card is drawn from a well shuffled deck of 52 cards. Calculate the probability that the card will be a ‘diamond’?
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149.A bag contains 4 red and 6 black balls. A ballis taken out of the bag of random. Find the probability of setting a black ball.
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150.From a well suoffled pack of cards, a card is drawn at random. Find the probability of setting a black queen.
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