Question

A circular cake is 360 degrees if you eat a piece that is 40 degrees of the cake, how many degrees are left in the cake?

Answer 1

Explanation:

a whole circle is 360°.

if you take away 40°, how many are left ?

that is absolutely the same as the question, when I have 15 apples and 6 are eaten, how many are left ?

well, 15-6 = 9 apples are left.

and so, 360-40 = 320° are left.