Question 510170
This sort of problem is tedious because you have to find all the possibilities.
50 cents can be 2 quarters, or 1 quarter and 5 nickels, or 1 quarter and 2 dimes and 1 nickel, etc.
.
<table>
<tr><td>Q&nbsp;&nbsp;&nbsp;&nbsp;<td>D&nbsp;&nbsp;&nbsp;&nbsp;<td>N&nbsp;&nbsp;&nbsp;&nbsp;<td>Total&nbsp;&nbsp;</tr>
<tr><td>2<td>0<td>0<td>&nbsp;&nbsp;50</tr>
<tr><td>1<td>2<td>1<td>&nbsp;&nbsp;50</tr>
<tr><td>1<td>1<td>3<td>&nbsp;&nbsp;50</tr>
<tr><td>1<td>0<td>5<td>&nbsp;&nbsp;50</tr>
<tr><td>0<td>5<td>0<td>&nbsp;&nbsp;50</tr>
<tr><td>0<td>4<td>2<td>&nbsp;&nbsp;50</tr>
<tr><td>0<td>3<td>4<td>&nbsp;&nbsp;50</tr>
<tr><td>0<td>2<td>6<td>&nbsp;&nbsp;50</tr>
<tr><td>0<td>1<td>8<td>&nbsp;&nbsp;50</tr>
<tr><td>0<td>0<td>10<td>&nbsp;&nbsp;50</tr>
</table>