Question

findmass of 40litresof petror of density 720kg/m3 if1m3=1000litres?

Answer 1

28.8?

Answer 2

Convert 400 litres to m^3. Look at the units, and what will cancel 'litres' and leave you with m^3:

(400 litres) ( 1 m^3/ 1000 litres )

Then: density = Mass / Volume
So, Mass = density x Volume

Can you solve it from here?

Answer 3

ten, I think they mentioned 40 liters not 400 litres

Answer 4

Thanks, my mistake.

Answer 5

np. I like your explanation above. It is up to the point.