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A jar contains only white and black marables. The probability of picking a black marable is 1/10. One red marable is added to the original jar. What is the probabilty of picking a black marable?

A. is 1/3
B. is 1/10
C. is 1/11
D. cannot be determined from the information given

User Meduz
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1 Answer

3 votes
My answer is both C and D
User Shaurya Uppal
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