A bag contains 8 blue balls and some black ball. the probability of drawing a blue ball to black ball in ratio is 5:7. find the nu

Question

A bag contains 8 blue balls and some black ball. the probability of drawing a blue ball to black ball in ratio is 5:7. find the number of black ball and a probability of getting a black ball​

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Athena 11 months 2021-07-03T10:48:19+00:00 1 Answers 0 views 0

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    2021-07-03T10:49:36+00:00

    Answer:

    I don’t know about this question brother and sister

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9:3-3+1x3-4:2 = ? ( )