Question

At a cafe 2 teas + 1 coffe cost= £3.40 1 tea and 4 coffees cost=£7.30 Work out the cost of 1 tea and the cost of 1 coffee:

Answer 1

Let t = cost of a tea

c = cost of a coffee

2t + c = £3.40---->8t + 4c = £13.60

t + 4c = £7.30----> t + 4c = £7.30

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7t = £6.30

t = £0.90

c = £1.60