A body initially at 80 degree Celsius cools to 64 degree Celsius in 5 minutes and to 52 degree Celsius in 10 minutes. The temperature of the body after 15 minutes will be.......
The temperature at 12 noon was 10 degree Celsius above zero. If it decreases at the rate of 2 degree Celsius per hour, at what time would the temperature be 8 degree Celsius below zero? What would be the temperature at mid night?