A man ate one hundred grapes in five days, each day eating six more than on the previous day.
How many grapes did he eat on the first day?
Explanations
Day 1: 8 grapes.
Day 2: 14 grapes.
Day 3: 20 grapes.
Day 4: 26 grapes.
Day 5: 32 grapes.
Total: 100 grapes.