The density of aluminium is 2.7 g cm^-3 and of brass is 8.4 g cm^-3. For the same mass, the volume of:

1. both will be same
2. aluminium will be less than that of brass
3. aluminium will be more than that of brass
4. nothing can be said

A block of wood of density 0.8 g cm^-3 has a volume of 60 cm³. The mass of block will be:

1. 60.8 g
2. 75 g
3. 48 g
4. 0.013 g

A boy travels a distance 150 m in 1 minute. His speed is:

1. 150 m s^-1
2. 2.5 m s^-1
3. 25 m s^-1
4. 9 m s^-1

Define the term volume of an object.