Question

Cost of five pizzas is 725 and six pastries is210 I want to purchase three. Pizzas and 12 pastries how much I should pay

Answer 1

cost of 1 pizza =725/5=125

cost of 1 pastry= 210/6=35

3 pizzas+12 pastries= 3(125)+12(35)

                                  = 375+ 420 = 795/-

Answer 2

Cost of one pizza be x and 5 pizzas would be 5x
cost one pastry be y and 6 pastries would be 6y
ATQ
5x=725
x=145

6y=210
y=35

Therefore, cost of a pizza and 12 pastry would be,x+12y
3x+12y=435+420=855

cost is 855.