###Human: 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?, ### Assistant: Peter needs 2 * 4 pounds of oats = 8 pounds of oats per horse per day.
Peter will need 8 pounds oats * 3 days = 24 pounds of oats per horse.
Peter will need 24 pounds of oats * 4 horses = 96 pounds of oats total.
Peter needs 3 pounds of grain * 3 days per horse = 9 pounds of grain per horse.
Peter will need 9 pounds of grain * 4 horses = 36 pounds of grain total.
For 3 days Peter will need a total of 96 pounds oats + 36 pounds grain = 132 pounds total. 
 So the answer is :  132