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bixtya [17]
2 years ago
13

The probability of a drawing a blue marble from a box of 18 marbles is 2/3. How many green marbles should be added to the box in

order to reduce the probability to 1/2?
Mathematics
1 answer:
artcher [175]2 years ago
8 0

Answer:

6 green marbles should be added.

Step-by-step explanation:

If the probability of drawing a blue marble from 18 marbles is 2/3 then there are 12 blue marbles because 18 times 2/3 is 12. This means that to reduce this probability to 1/2 you need to add 6 more marbles to the total amount to get it to 24. Now the probability of getting a blue marble is 12/24 which is 1/2.

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