Question

Sammie and David were selling water bottles to raise money for new football uniforms. Sammy sold 3 water bottles for every 5 water bottles David sold. Together they sold 160 water bottles. How many did each boy sell?

Answer 1

Answer:

Sammy sold 5/8 of them. David sold 3/8 of them.

5/8 160 =  100

3/8 160 = 60

You can also do: 5x+3x = 160

8x =160 x=20

Sammy sold 5*20 = 100

David sold 3*20 = 60