How much does each box weigh?

Question

A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 7large boxes and 9small boxes has a total weight of 234 kilograms. A delivery of 5large boxes and 3small boxes has a total weight of 120kilograms. How much does each type of box weigh?

Answer 1

weight of large box = x

weigh of small box = y

 

A delivery of 7large boxes and 9small boxes has a total weight of 234 kilograms

 

7x+ 9y = 234

 

A delivery of 5large boxes and 3small boxes has a total weight of 120kilograms.

5x + 3y =120

 

solve these equation simultaneously to find the value of x and y