WebIf the probability of getting a white ball is 103 and that of a black ball is 52, then find the probability of getting a red ball. If the bag contain 20 black balls, then find the total number of ball is in the bag. Medium Solution Verified by Toppr P (of red ball) =1−(103 + 52) =1−(3+ 104) =1− 107 = 1010−7 P (of red ball) = 103 WebA bag contains 15 red and 20 black balls. Each ball is numbered 1,2 or 3. 20% of red balls are numbered 1 and 40% are numbered 3. Similarly 45% of black balls are numbered 2 …
combinatorics - How many ways balls can be selected?
WebMay 13, 2024 · There are 12 red balls, 10 blue balls, 15 green balls and 9 black balls in a bag. What is the minimum number of balls to be taken out of the bag to assure that you have all the balls of one color? A. 10 B. 16 C. 23 D. 42 E. 43 The worst case scenario would be if we pick 11 red balls, 9 blue balls, 14 green balls and 8 black balls. WebMay 4, 2024 · A box contains 28 red balls, 20 green balls, 19 yellow balls, 13 blue balls, 11 white balls, and 9 black balls. What is the minimum number of balls that must be drawn from the box without replacement to guarantee that at least 15 balls of a single color will be drawn ? A. 75 B. 76 C. 79 D. 84 E. 91 mr j2s エラーコード e9
A bag contains 5 red, 6 white and 7 black balls. Two balls are
WebApr 29, 2024 · e) 53. This is a very simple question. Jar contains 15 WB, 25 RB, 10 BB, 20 GB. Now to ensure that there must be 8 balls of same colour, the best case will be, we take out 8 ball of same colour &. the worst case will be when we take out 7 balls of each colours and then we take out any ball. WebHence the total number of balls are 2*24 = 48. Of the 48 balls, green are (1/4)*48 = 12, blue are (1/8)*48 = 6, yellow are (1/12)*48 = 4 and the rest, white are 26. Check: Total number of balls = 12+6+4+26 = 48 Answer: 6 balls are blue. More answers below An urn contains 5 yellow balls and 10 green balls. WebTranscribed Image Text: 5. Alice has some red balls and some blue balls in a bag. Altogether she has 25 balls. Alice picks one ball from the bag. The probability that Alice picks a red ball is x and the probability that Alice picks a blue ball is 4x. Work out how many blue balls are in the bag. Expert Solution. mr j4 10b バッテリー交換