###Human: Thomas is making hummus. One of the ingredients in a hummus recipe is chickpeas. For one serving of hummus, the recipe calls for 1 cup of chickpeas. In a can of chickpeas, there are 16 ounces of chickpeas. In one cup of chickpeas, there are 6 ounces. To make 20 servings, how many cans of chickpeas should Thomas buy?, ### Assistant: For 20 servings, Thomas needs 20*1 = 20 cups of chickpeas.
To have 20 cups, Thomas needs 20*6 = 120 ounces.
120 ounces/16 ounces = 7.5 cans of chickpeas.
Since Thomas cannot buy half a can, he needs to buy 8 cans. 
 So the answer is :  8