<PRE><B>Question 1208021</B>
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The idea of solution is to use &amp;nbsp;&quot;9 points&quot; &amp;nbsp;throws as many times as possible 
in order for to gain the rest scores using &amp;nbsp;&quot;2 points&quot; &amp;nbsp;and &amp;nbsp;&quot;6 points&quot; &amp;nbsp;throws.


As soon as you get this idea, &amp;nbsp;you will find the answer in one minute &amp;nbsp;(or faster):


&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;eight &amp;nbsp;&quot;9 points&quot; &amp;nbsp;throws &amp;nbsp;(that will give you &amp;nbsp;72 &amp;nbsp;scores), &amp;nbsp;and
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;one &amp;nbsp;&quot;6 points&quot; &amp;nbsp;and two &amp;nbsp;&quot;2 points&quot; &amp;nbsp;throws &amp;nbsp;(to get the rest &amp;nbsp;10 &amp;nbsp;scores).



In all, &amp;nbsp;you need &amp;nbsp;&amp;nbsp;8 + 1 + 2 = 11 &amp;nbsp;throws. &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;U&gt;ANSWER&lt;/U&gt;


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Solved.



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In the United States, most public school students learn multiplication table in second or third grade. 
(This info is from the Internet).



This problem is good to give it to the students of the 2nd or 3rd grade, 
immediately after they learned the multiplication table.


It is a right way to develop their minds in a timely manner.



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