Brain Teasers and Puzzles

A box for your workings out:

Hint: Find the weight of the bottle first.

Answer: 24 ounces.

The bottle weighs 16 ounces.

As a bottle weighs eight ounces plus half a bottle we can write this as:

 B = 8 + ½B

Take ½ from both sides to get:

 ½B = 8

So B = 16, which means B + ½B = 24.