Question

For every 3 bottles of water sold at a gas station, there are 4 bottles of soda sold. If there are 20 more bottles of soda sold than water in a day, how many bottles of water were sold?

Answer 1

3 Water bottles

4 soda bottles

Difference : 1

20 Water bottles

19 Soda bottles

Difference: 1

Check my work; this is confusing

Answer 2

A) w / s = 3 / 4 OR A) 4w = 3s

B) w + 20 = s then multiplying B) by -4

B) -4w -80 = -4s then adding it to A)

A) 4w = 3s

-80 = -s

So 80 bottles of soda and

60 bottles of water were sold

***** DOUBLE-CHECK *****

60/80 = 3/4 and 80 -60 = 20 correct!!