Summary: The temperature at 12 noon was 10°C above zero. If it decreases at the rate of 2°C per hour until midnight, the temperature would be 8°C below zero at 9 PM and temperature at the midnight will be 14°C below zero.
Temperature is be 8 degree below 0 is 10 degree + 8 degree = 18 degree divided by 2 = 9 hours 12 pm + 9 hours = 21:00 pm = 9:00 pm
Temperature at 12 am 12 hours * 2 degree = 24 degree So, Temperature at 12 noon - Temperature in 12 hours 10 degree - 24 degree = -12 degree which is 12 degree below zero.
Answers & Comments
Answer:
Summary: The temperature at 12 noon was 10°C above zero. If it decreases at the rate of 2°C per hour until midnight, the temperature would be 8°C below zero at 9 PM and temperature at the midnight will be 14°C below zero.
Verified answer
Temperature is be 8 degree below 0 is10 degree + 8 degree = 18 degree divided by 2 = 9 hours
12 pm + 9 hours = 21:00 pm = 9:00 pm
Temperature at 12 am
12 hours * 2 degree = 24 degree
So,
Temperature at 12 noon - Temperature in 12 hours
10 degree - 24 degree = -12 degree which is 12 degree below zero.