Question

There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a blue marble is 7/8
There are 72 marbles in total in the bag and each is equally likely to be chosen.
Work out how many red marbles there must be.

Answer 1

Answer:

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Answer 2

Answer:

9

Step-by-step explanation:

if 7/8 are blue, 1/8 are red

1/8 *72=9