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A bag contains 18 balls out of which x balls are red if one ball is drawn at random from the bag what is the probability that is not red. if two more red balls are put in the bag the probability of drawing a red ball will be 9 by 8 times the probability of drawing a red ball in the first case find the value of x?
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A bag contains 18 balls out of which x balls are red if one ball is dr...
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A bag contains 18 balls out of which x balls are red if one ball is dr...
Let the no. of red balls be xprobability that the ball drawn is not red=(18-x)/18probability that the ball drawn is red = x/18Now, if two more red balls are added then,probability of getting a red ball = (x+2)/18.................(1)According to the question,probability of getting a red ball =(9/8)(x/18)..............(2)From equation 1 and 2(x+2)/18=(9/8)(x/2)(x+2)/18=x/1616x+32=18x2x=32x=16Therefore, the no. of red balls is 16.And the probability of not getting a red ball in the first case = (18-16)/18=2/18=1/9
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A bag contains 18 balls out of which x balls are red if one ball is drawn at random from the bag what is the probability that is not red. if two more red balls are put in the bag the probability of drawing a red ball will be 9 by 8 times the probability of drawing a red ball in the first case find the value of x?
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A bag contains 18 balls out of which x balls are red if one ball is drawn at random from the bag what is the probability that is not red. if two more red balls are put in the bag the probability of drawing a red ball will be 9 by 8 times the probability of drawing a red ball in the first case find the value of x? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A bag contains 18 balls out of which x balls are red if one ball is drawn at random from the bag what is the probability that is not red. if two more red balls are put in the bag the probability of drawing a red ball will be 9 by 8 times the probability of drawing a red ball in the first case find the value of x? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bag contains 18 balls out of which x balls are red if one ball is drawn at random from the bag what is the probability that is not red. if two more red balls are put in the bag the probability of drawing a red ball will be 9 by 8 times the probability of drawing a red ball in the first case find the value of x?.
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