Huey's Hip Pizza sells two sizes of square pizzas: a small pizza that measures 8 inches on a side and costs $10, and a large pizza that measures 12 inches on a side and costs $20. If two friends go to Huey's with $30 apiece, how many more square inches of pizza can they buy if they pool their money than if they each purchase pizza alone?  Pick one.
A) 5 square inches
B) 10 square inches
C) 16 square inches
D) 25 square inches
E) 350 square inches
In the first case each can buy one pizza of $10 and one pizza of $20.   In square inches that would be (8*8=64) for the small pizza and (12*12=144) for the large pizza. In total sq inches that would be  (64+144)*2= 
<gadget id="calculator"> (64+144)*2</gadget>
<output>416</output>
416 sq inches.   In the second case if they pool their money together they can buy 3 large pizzas. In terms of square inches that would be   3*144= 
<gadget id="calculator">  3*144</gadget>
<output>432</output>
432 sq inches.   Hence, the difference is 16 square inches more (432-416).   The correct answer is 16 square inches
<result>C</result>
Huey's Hip Pizza sells two sizes of square pizzas: a small pizza that measures 8 inches on a side and costs $10, and a large pizza that measures 12 inches on a side and costs $20. If two friends go to Huey's with $30 apiece, how many more square inches of pizza can they buy if they pool their money than if they each purchase pizza alone?