Question

2. The dimensions of a hall are 10 mx 7 m x 5 m.
If the density of air is 1.11 kg m-, find the mass
of air in the hall.
Ans: 388.5 kg
3. The density of aluminium is 2.7 g cm-3. Express​

Answer 1

Answer:

Density=Mass\Volume.

Do in this method.