Question

7. The mass of a rock is 20 g. The rock is dropped into the beaker and the volume changes
from 20 ml to 24 ml. What is the volume of the rock?
​

Answer 1

• Mass=20g
• Volume=24ml-20ml=4ml

We know

$\boxed{\sf Density=\dfrac{Mass}{Volume}}$

$\\ \sf\longmapsto Density=\dfrac{20}{4}$

$\\ \sf\longmapsto Density=5g/ml$