Question

Gina sells 216 cakes in the ratio of small:medium:large = 5:7:12
the profit for one medium cake is twice the profit of one small cake
the profit of one large cake is three times as much as a small cake
her total profit is £648.45
work out her profit for one small cake

Answer 1

Step-by-step explanation:

total profit = 648.45

ratio of One small cake and medium cake is 1:2

nd one small and large cake is 1:3

so it means 1x + 2x + 3x = 648.45

6x = 648.45

x = 648.45 ÷ 6

x = 108.075

now we have to find no. of small cakes

216× 5/24

no. of small cakes = 45

profit per cake = 108.075 ÷ 45

= 2.40 rs. approx.