Gce Model Questions Vol1 2018 Mathematics Question 18
Practice objective / multiple choice question 18 from the 2018 Gce Model Questions Vol1 Mathematics examination.
A box contains 5 white balls and an unknown number of black balls. Two balls are drawn successively without replacement. The probability that both drawn balls are black is \(\frac{3}{7}\). Determine the original number of black balls in the box.
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About This Question
This is Gce Model Questions Vol1 2018 Mathematics Question 18. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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