Question

1) A rectangular tank, 15 cm long and 20 cm wide, is filled with water to a depth of 12 cm. When a rock is put in, the water level rose to 15 cm. What is the volume of the rock?

Answer 1

change in volume = 15x20x3 cm^2
which must have been caused by the volume of the rock.

Answer 2

1444cm3 ans