Question

Ted and bill went to a shop to buy toy cars and trucks.Ted bought 4toy cars and 3toy trucks.He paid a bilk of $61.Bill paid a bill of $58 for his purchase of 2toy cars and 4toy trucks.What is the total cost of 5toy cars and 3toy trucks?

Answer 1

Let the price of each car be x and each truck y 4x+3y=61...... (1) 2x+4y=58.... (2)×2 4x+8y=116.... (2) By subtract 1 and 2 4x+8y-4x-3y=116-61 5y=55 Y=11 From equation 2 2x+4×11=58 2x=58-44=14 X=7 Cost of 5 car and 3 truk = 5×7+3×11 =35+33=68