If 10 litres of petrol cost £8.20, calculate the cost of:
(a) 4 litres
(b) 12 litres
(c) 30 litres.
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Answer:
b. 12 litres
Step-by-step explanation:
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Answered by
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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
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