Question
$3$ blue and $n$ green gloves are in a box. Suppose that if we draw two gloves from the box without replacement then the probability of drawing $2$ blue gloves is $1/2$. If this is the case, then what value must $n$ be?
easy Probability
Distinct Gloves
A release-checked easy problem for training Combinations and Permutations.
Practice focus
This Probability problem is tagged Combinations and Permutations. State the random variables and conditioning information explicitly, then check the result against boundary cases before opening hints or a solution.
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