Question 1202678
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Cathy owns a collection of 25 ballpoint pens of which 6 are pilot. 
If 2 ballpoints are selected at random, find the probability that both are made by pilot.
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The probability that the first ballpoint is pilot equals {{{6/25}}}.

The probability that the second ballpoint is pilot equals {{{5/24}}}.


The probability that both ballpoints are pilot is the product

    {{{(6/25)*(5/24)}}} = reduce fractions = {{{(6/5)*(1/24)}}} = reduce fraction again = {{{(1/5)*(1/4)}}} = {{{1/20}}} = 0.05 = 5%.    <U>ANSWER</U>
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Solved.