John scores 2 shots worth 2 points and 1 shot worth 3 points every 4 minutes.  He plays for 2 periods.  Each period is 12 minutes.  How many points does he score?
He played for 2*12=
<gadget id="calculator">2*12</gadget>
<output>24</output>
24 minutes.
He gets 2*2=
<gadget id="calculator">2*2</gadget>
<output>4</output>
4 points per minute from the two-point shots.
So he scores 4+3=
<gadget id="calculator">4+3</gadget>
<output>7</output>
7 points per minute.
There are 24/4=
<gadget id="calculator">24/4</gadget>
<output>6</output>
6 intervals.
So he scores 7*6=
<gadget id="calculator">7*6</gadget>
<output>42</output>
42 points.

<result>42</result>