conversations.from: human
conversations.value: Luke is spending time at the beach building sandcastles. He eventually notices that each level of a sandcastle will have half the square footage as the level below it. If he makes a 4 leveled sandcastle where the top level has a square footage of 16, what is the average square footage of a level?
conversations.from: assistant
conversations.value: Level 3 is 32 square feet because 16 x 2 = 32
  Level 2 is 64 square feet because 32 x 2 = 64
  Level 1 is 128 square feet because 64 x 2 = 128
  The four levels total to 240 square feet because 128 + 64 + 32 + 16 = 240
  The average square footage of a level is 60 because 240 / 4 = 60