Water bottles are on sale for 3 for $6.00. You can also buy 1 for $2.20. Which is cheaper?
If 3 water bottles is on sale for 6 dollars, each water bottle is 2 dollars. (6/3)
2 dollars is cheaper that 2.20 dollars, the answer is the first option.
I hope this helped. :))
Three water bottles are cheaper :D