Answer:
height of water in the container is 3 cm.
Explanation:
Given;
A sealed rectangular container, measuring 4 cm by 8 cm by 16 cm
the height of the container is 16 cm, when filled with water at 4 cm level from the top, thus, the height of water in the container is (16 cm - 4cm) = 12cm
Volume of water in the container when it is sitting on its smallest face = 4 cm x 8 cm x 12 cm = 384 cm³
Volume of water in the container when it is sitting on its largest face = 8 cm x 16 cm x h
where;
h is height of water in the container
384 = 8 x 16 x h
384 = 128h
h = 384 / 128
h = 3 cm
Therefore, height of water in the container is 3 cm.