In a section of the forest, there are 100 weasels and 50 rabbits. Three foxes invade this region and hunt the rodents. Each fox catches an average of 4 weasels and 2 rabbits per week. How many rabbits and weasels will be left after 3 weeks?
3 foxes catch 4 weasels each every week for a total of 3*4 = 
<gadget id="calculator">3*4</gadget>
<output>12</output>
12 weasels
12 weasels are caught every week for 3 weeks for a total of 12*3 = 
<gadget id="calculator">12*3</gadget>
<output>36</output>
36 weasels
3 foxes catch 2 rabbits each every week for a total of 3*2 = 
<gadget id="calculator">3*2</gadget>
<output>6</output>
6 rabbits
6 rabbits are caught every week for 3 weeks for a total of 6*3 = 
<gadget id="calculator">6*3</gadget>
<output>18</output>
18 rabbits.
There were originally 100 weasels so now there are 100-36 = 
<gadget id="calculator">100-36</gadget>
<output>64</output>
64 weasels left.
There were originally 50 rabbits so now there are 50-18 = 
<gadget id="calculator">50-18</gadget>
<output>32</output>
32 rabbits left.
There are 64+32 = 
<gadget id="calculator">64+32</gadget>
<output>96</output>
96 weasels and rabbits left.

<result>96</result>