Question

The temperature of a freezer is never greater than -2 Celsius. Yesterday the temperature was at -10 Celsius, but it increased at a steady rate of 1.5 Celsius per hour. How long in hours and minutes did the temperature increase inside the freezer?

Answer 1

13.5

Explanation:

First I thought of all the answers,10, 2 and 1.5.

The added them all together.