Mark bought a set of 6 flower pots of different sizes at a total cost

Mark bought a set of 6 flower pots of different sizes at a total cost of 8.25. Each pot cost 0.25 more than the next one below in size. What is the cost of the largest pot?

8.25 = 6/2 (2*x + (6-1) * 0.25)

X = ¾

Now Largest Post price = ¾ + 1.25 = 2

Answer: $2.00