Peter has four horses. Each one eats 4 pounds of oats, twice a day, and 3 pounds of grain once a day. How many pounds of food does he need to feed his horses for 3 days?
Peter needs 2 * 4 pounds of oats = 
<gadget id="calculator">2*4</gadget>
<output>8</output>
8 pounds of oats per horse per day.
Peter will need 8 pounds oats * 3 days = 
<gadget id="calculator">8*3</gadget>
<output>24</output>
24 pounds of oats per horse.
Peter will need 24 pounds of oats * 4 horses = 
<gadget id="calculator">24*4</gadget>
<output>96</output>
96 pounds of oats total.
Peter needs 3 pounds of grain * 3 days per horse = 
<gadget id="calculator">3*3</gadget>
<output>9</output>
9 pounds of grain per horse.
Peter will need 9 pounds of grain * 4 horses = 
<gadget id="calculator">9*4</gadget>
<output>36</output>
36 pounds of grain total.
For 3 days Peter will need a total of 96 pounds oats + 36 pounds grain = 
<gadget id="calculator">96+36</gadget>
<output>132</output>
132 pounds total.

<result>132</result>