The density of a certain oil on frying becomes 0.4 kgm-3 with the volume of 20m3. what will be its initial volume when its initial density is 0.8 kgm-3 assu...

Answer Details

The density of an object is equal to its mass divided by its volume. In this case, the density of the oil after frying is 0.4 kg/m³ and its volume is 20 m³. Therefore, we can calculate the mass of the oil as: mass = density x volume = 0.4 kg/m³ x 20 m³ = 8 kg Now we can use the formula for density to find the initial volume of the oil, assuming no loss of oil due to spillage. If the initial density of the oil was 0.8 kg/m³, then we can find the initial volume as: initial volume = mass / initial density = 8 kg / 0.8 kg/m³ = 10 m³ Therefore, the initial volume of the oil was 10 m³. The correct answer is "10 kgm-3".