Question 1139892
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The total number of coins is 8 + 15 + 27 = 50.


The probability to draw a quarter at the first drawing is  {{{15/50}}} = {{{3/10}}}.


The probability to get a quarter at the second drawing is  {{{14/49}}} = {{{2/7}}}.


The probability under the question is therefore the product  {{{(3/10)*(2/7)}}} = {{{(3*2)/(10*7)}}} = {{{6/70}}} = {{{3/35}}}.    <U>ANSWER</U>
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Solved.