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28 February, 16:23

1kg costs £1.28. what is the cost of 250g

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  1. 28 February, 19:33
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    First, convert 1 kg to g.

    1 kg = 1000 g

    So 1000 g = 1.28

    Set up a proportion:

    1000/1.28 = 250/x

    Cross multiply:

    1000x = 320

    Divide 1000 to both sides:

    x = 0.32

    So 250g costs £0.32
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