One cup of tea and sticky buns cost 1.20 and three teas and two sticky buns cost £320 what is the cost of sticky buns

Question

Solve step by step

Answer 1

I think £320 should be £3.20.

If one sticky bun and a cup of tea cost £1.20, then 3 sticky buns and 3 teas cost 3×1.20=£3.60.

But 2 sticky buns and 3 teas cost £3.20. Therefore a sticky bun costs £0.40, because 3.60-3.20=0.40 and we have one fewer sticky bun. The tea costs 1.20-0.40=£0.80.

So there we have it: the bun costs 40p and the tea costs 80p a cup.