The diagram shows a container made of some identical sections. Figure H shows one section of the container. When 7001 cm³ of water was poured into the tank, find the water level in the container.
Volume of the bigger cuboid in Figure H
= 50 x 10 x 4
= 2000 cm³

Volume of the smaller cuboid in Figure H
= 10 x 10 x 2
= 200 cm³

Volume of the Figure H
= 2000 + 200
= 2200 cm³

Number of sections of the container
= 7001 ÷ 2200
= 3 r 401

401 cm³ is less than 2000 cm³.  So, the water only fills up to part of a bigger cuboid.

Base area of the bigger cuboid
= 50 x 10
= 500 cm²

Height of water in the bigger cuboid of the Figure H
= 401 ÷ 500
= 0.802 cm

Height of 3 sections of the container
= 3 x (4+2)
= 18

Height of the water level
= 18 + 0.802
= 18.802 cm

Answer(s): 18.802 cm