Question

a box contains 3 blue 2 white and 4 red marbles. if a marble is drawn at random from box,what is the probability that it will be black ​

Answer 1

If a marble is drawn at random from the box, what is the probability that it will not be a white marble? Solution : Total number of marbles = 3+2+4 = 9 . Number of non-white marbles = 3+4 = 7.

Answer 2

Answer is 7

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