An empty 60 litre petrol tank has a mass of 10kg. Its mass when full
PHYSICS
JAMB 1997
An empty 60 litre petrol tank has a mass of 10kg. Its mass when full of fuel of relative density 0.72 is
- A. 7.2kg
- B. 33.2kg
- C. 43.2kg
- D. 53.2kg
Correct Answer: C. 43.2kg
Explanation
R.d = \(\frac{\text {density of petrol}}{\text{density of water}}\)
0.72 = \(\frac{\text{density of petrol}}{1000}\)
Density of petrol =720kgm3
mass of petrol = 720 x 60 x 10-3
=43.2kg
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