Question 1208709
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A fisherman has 17 different trout flies. How many different selections of 4 flies each can he make?
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<pre>
{{{C[17]^4}}} = {{{(17*16*15*14)/(1*2*3*4)}}} = 2380.    <U>ANSWER</U>

The number of combinations of 17 different flies taken 4 at a time.
</pre>

Solved.