SOLUTION: A customer purchases 5 doughnuts, 3 snowballs and 6 queen cakes from a bakery. A doughnut costs twice as much as a queen cake whilst a snowball costs R4.00 more than a queen cake.

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Question 1127726: A customer purchases 5 doughnuts, 3 snowballs and 6 queen cakes from a bakery. A doughnut costs twice as much as a queen cake whilst a snowball costs R4.00 more than a queen cake. The customer hands the cashier R200.00 and receives R36.00 change.
1) What was the total cost for all the items?
2) Determine the cost of a doughnut, a snowball and a queen cake.
3) How much will 2 doughnuts and 1 snowball cost?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
If x is the price for 1 queen cake, and total cost of the three items & quantities was 200-36=164 Rs,

then

5%2A2x%2B3%28x%2B4%29%2B6x=164
Solve and finish for the other two prices.


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ITEM         PRICE, Rs.    QUANTITY    COSTS
Donut           2x           5         5*2x
Snowball       x+4           3         3(x+4)
Queencake       x            6         6x
TOTAL Cost                             164