Question

Sam is eating a Big Hamburger. The first bite was 20% of the Hamburger, the second bite was 20% of what is left and so every next bite is 20% of what is left. How much did the Hamburger weigh originally, if after the second bite there was 160g of it left?

Answer 1

250

Explanation:

We start with the 100% and if we take 20% from that we get 80% if we take 20% from that we have 64%. This means 160 is 64%. So if we do 160/64*100 we will get the answer!

Answer 2

250 g

Explanation:

160 g after two bites

80% after 1 bite

`(80)/(100) =.8`

160 ÷ .8=200

200 ÷ .8=250