Reasonable Temperature

For example, consider this situation.

Also, consider these temperatures:

89°C              60°C              21°C              9°C

Let's find which one of these can be the reasonable temperature of the given situation.

We know that temperature inside a classroom is moderate.

The reasonable temperature of a classroom would be around the room temperature, which is 20°C.

So, the reasonable temperature inside a classroom is 21°C.