Question

An aquarium has a rectangular base that measures 100 cm by 40 cm and has a height of 50 cm. It is filled with water to a height of 40 cm. A brick with a rectangular base that measures 40 cm by 20 cm and a height of 10 cm is placed in the aquarium. By how many centimeters does the water rise?

Answer 1

100*40*50=200,000 cm^3 is the volume of the aquarium.

100*40*40=160,000 cm^2 is the volume of water.

40*20*10=8,000 cm^3 is the volume of the brick.

160,000+8,000=168,000 is the volume of the water plus the brick.

 

100*40*x=168,000

4000x=168,000

x=168,000/4000

x=42 cm is the new water level

42-40=2 cm rise in water level due to the addition of the brick.

Answer 2

Answer:

2 cm

hope it will help you