Question

The mass of an empty bucket of capacity 10litres is 1 kg.Find its mass when it is copletely filled with a liquid of relative density 0.8.

Answer 1

Since the capacity of bucket is 10 litres, therefore the mass of the liquid is 1okg (as only 10 litres can be filled in the bucket and 1 litre is equal to 1kg).
And adding the mass of the bucket 1kg, therefore total mass is 10 + 1 = 11kg.
So the answer is 11kg (please note only mass is asked)

Answer 2

Hi, sir

Mass of the empty bucket = 1 kg

Volume of the bucket = 10 litres

density = mass/ volume

mass = density x volume

  = 0.8x10 kg

  = 8 kg

  = mass of liquid in the bucket

Total mass of the bucket = mass of bucket + mass of empty bucket  

  = (8 + 1) kg = 9kg.