Mathematics, 24.11.2020 18:40 92835304629

A postal carrier charges £8.95 up to 20 kg then 20p for each kg over that weight. Jane wants to send four boxes to the same address. The boxes weigh 6.4 kg, 7.2 kg, 6.3 kg, 6.1 kg.
(a) Which three of the boxes have a total weight nearest to 20 kg but still less than 20
kg?
(b) Work out the total cost of sending all four boxes together.

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