Answer:
The greatest ammount of picnic baskets you could make is 30 with an extra 12 granola bars left over, but it depends on how many people are going to eat from one picnic pasket. For example..say there were two people sharing each basket, you would make 15 picnic baskets with 12 leftover. The number would be 15 baskets because each person sharing the picnic basket together would each get 1 sandwich and 1 granola bar.