Question

Debbie’s pizza shack cuts a large pizza into 10 equal slices. The diameter of the pizza is 16 inches. Bob eats two slices of pizza. How much pizza does he eat ?

Answer 1

Debbie’s pizza shack cuts a large pizza into 10 equal slices. The diameter of the pizza is 16 inches. Bob eats two slices of pizza. How much pizza does he eat ?

Solution:

There are 10 equal slices of pizza

Out of 10 slices bob eats 2 slices.

So, out of one pizza bob eats $\frac{2}{10}$ or $\frac{1}{5}$ th of the pizza

Calculating in terms of area,

Diameter of Pizza= 16 inches

So, Radius of Pizza= $\frac{Diameter}{2}$

Radius of pizza=$\frac{16}{2}$=8inches

Area of complete pizza= πr²=π8²=64π=200.96inches²

Area of the part had by Bob=$\frac{1}{5}$*200.96 inches²

=40.192inches²

Bob had 40.192 inches² out of 200.96 inches² pizza

Answer 2

Bob eats 2 slices of pizza. :)