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22 July, 07:53

9.

The cost of 20 litres of petrol is £18

Work out the cost of 1 litre of petrol.

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Answers (2)
  1. 22 July, 08:31
    0
    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
  2. 22 July, 10:05
    0
    20 x 1 / 18 = 1.11
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