2. 职称英语
  3. A colored marble is to be chosen at random from a bag of marbles. The probabilit

A colored marble is to be chosen at random from a bag of marbles. The probabilit

游客2025-02-24  25
问题 A colored marble is to be chosen at random from a bag of marbles. The probability that the marble chosen will be green is 4/Which of the following numbers could NOT be the total number of marbles in the bag? Select all such numbers.
选项 A、64
B、72
C、110
答案 A, C
解析 The correct answer is A and C. You are given that the probability of drawing a green marble is 4/9 or 4 out of 9. This means that the total number of marbles in the bag must be a multiple of 9. The question asks for the answer choice that cannot be the number of marbles in the bag. Therefore, the answer choice that is not a multiple of 9 will be the correct answer. Neither 64 nor 110 are multiples of 9.
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