azeezbast896 azeezbast896

14-01-2020
Mathematics

contestada

15 balls are in bag of red and blue balls if 6 is red how many red balls must be added to bag so that probability is 2÷3

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petiesmo petiesmo

14-01-2020

Answer: 12 red balls must be added

Step-by-step explanation:

Starting out with 15 balls, 6 red implies 9 blue. If blue remains 9, then we expect red to be 18 for a probability at 2/3. 18-6 = 12

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fatimadavoudian7 fatimadavoudian7

14-01-2020

I think 12 is the correct answer

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