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Sagot :
Answer: there are a total of 7 marbles
Step-by-step explanation:
The chance of the first marble being blue is 4/7. Now we only have 6 marbles in the bag (3 red and 3 blue)
The chance of the second marble being blue is 3/6
Answer:
Step-by-step explanation:
6 total
3R 3B
50% chance for both
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