Question

If 10 litres of petrol cost £8.20, calculate the cost of:

(a) 4 litres
(b) 12 litres
(c) 30 litres.​

Answer 1

Answer:

b. 12 litres

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

10 L of petrol costs = £8.20

1 L of petrol costs = £ 8.20/10

a) cost of 4 L petrol = 8.20/10×4

=£3.28

b) cost of 12 L of petrol = 8.20/10×12

=£12.84

c) cost of 30 L of petrol = 8.20/10×30

=£24.6