Ml's & Height

In Maths we have been learning how much liquid is in a bottle. My bottle said it had 350ml. It actually contained 400ml. The reason the company's do this is so none can complain they didn't get enough water. The steps we went through were: First fill the bottle to the rim. Then pour out 50ml into a container, using a ruler measure how much water is left record your results . Keep recording your results every time you pour out 50ml. After your bottle is empty look at your results see how much liquid was in the bottle to how much there was suppose to be.

My Result's

Mls Poured          Out	Height Of                    Water
0	16
50	10
100	9
150	7
200	6
250	4
300	3
350	2
400	0