Question

The temperature at 12 noon was 10°C above
zero. At what time the temperature will be
8°C below 0°C, if it decreases at the rate of
2°C per hour ? If it decreases at the rate of
2°C per hour till midnight, what would be the
temperature at mid-night?​

Answer 1

Answer:

it will be 9 o'clock in night when the temperature will decrease to -8°c

Answer 2

from 12 noon to 12:00 midnight there is a difference of 12 hours and if temperature is decreasing at the rate of 2°C then, in midnight the temperature will be -24°C and at 5:00 temperature will be at 0°C.