Question

9.
The cost of 20 litres of petrol is £18
Work out the cost of 1 litre of petrol.

Answer 1

Answer:

20 x 1 / 18= 1.11

Step-by-step explanation:

Answer 2

20 litres = 18 pounds

20/20 litres = 18/20 pounds ... divide both sides by 20

1 litre = 0.9 pounds

1 litre of petrol costs £ 0.9