WebExample: An bag contains 15 marbles of which 10 are red and 5 are white. 4 marbles are selected from the bag. There’s ambiguity here: e.g., if on one draw I select four red … WebThere are 12 balls in a bag. 3 of them are red, 4 of them are green, and 5 of them are blue. We randomly take out 3 balls from the bag at the same time. What is the probability that all three balls are of the same colour? My answer: ( 3 / …
A bag contains 3 red marbles, 2 blue marbles, and 5 green
WebAug 10, 2024 · A bag contains 8 white balls and 6 black balls. ... (15 – 5) = 10 balls in 8 C 1. ways. n(E) = 5 C 2 x 8 C 1 = 10 x 8 = 80. So, P(E) = 80 / 220 = 4 / 11. Advertisement. Rough Workspace. Example #4 – Probability problem on Balls. A bag contain 4 red balls, 6 yellow balls and 5 green balls. If 3 balls are drawn randomly, then what is the ... WebA bag contains 3 black balls and 5 white balls. Paul picks a ball at random from the bag and replaces it back in the bag. He mixes the balls in the bag and then picks another ball at … earth and sea restaurant
[Solved] In a bag, there are 5 red, 7 white and 3 green ... - Testbook
WebApr 1, 2024 · represents the number of white balls therefore there are 5 white balls and 10 red balls present in the bag. So, the correct answer is “Option B”. Note: Suppose if we think we have x red balls, then we have 15 − x white balls. The given condition for this can be written as ⇒ x 15 = 2 × ( 15 − x) 15 In the RHS 2 is multiplied to the numerator. WebA bag has 8 white and blue balls. The number of white balls are five and the number of the blue balls are 3. One can pick two times with replacement. Calculate the chance that one will pick... WebNumber of white balls = 7. Number of red balls = 5. Calculation: Total number of balls = (5 + 7 + 3) = 15. Number of red balls = 5. ∴ Probability that the ball is neither white nor green = … earth and sea spa essentials