Question

An apple pie is taken out of the oven with an internal temperature of 325 degrees F. It's placed on a rack in a room with a temperature of 72 degrees F. After 10 minutes, the temperature of the pie is 200 degrees F. What will be the temperature of the pie 30 minutes after coming out of the oven?

Answer 1

In 10 minutes the pie dropped 125 degrees, so we can assume in another 10 minutes it will drop another 125 degrees, and in another 10 minutes 125 degrees, but this brings us down to zero degrees. But it says it's kept at 72 degrees. So we can assume the pie will remain at 72 degrees

Answer 2

so the answer that Yunuzaj put is correct
to account for the room tempurature you would have to find some complicated equation to solve this but you could assume that the tempurature rate would slow down as it gets closser to room tempurature

if you didn't have to account for the room tempurature
the ending tempurature would be -50 degrees F
because 325-200=125
so 125=10
10 times 3=30
so
125 times 3=375
325-375=-50F