Question 1174074
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    Probability  P = {{{(7/15)*(6/14)}}} = {{{(1/15)*(6/2)}}} = {{{3/15}}} = {{{1/5}}} = 0.2 = 20%.    <U>ANSWER</U>


The remarkable number 15 in this formula is 8+7.
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Solved.


The formula is self-explanatory.