Question

Select the option with the lowest unit price for soda. 12 cans at 7.49, 24 cans at 13.25, 30 cans at 15.49, 6 cans at 3.68?
1) 12 cans at 7.49
2) 24 cans at 13.25
3) 30 cans at 15.49
4) 6 cans at 3.68