Question

There is a bag with only red marbles and blue marbles.
7
The probability of randomly choosing a blue marble is 73
8.
There are 56 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: if the probability of picking a red marble from a jar that contains 4 red marbles and 6 blue marbles is 4/10 or 2/5, then the probability of not picking a red marble is equal to 1 - 4/10 = 6/10 or 3/5, which is also the probability of picking a blue marble.

Step-by-step explanation:

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