Question

the temperature at noon at a certain place was 12 degrees above zero if it decreases at the rate of 2 degrees per hour until midnight at what time would it be 10 degrees below zero​

Answer 1

..........Hello Mate.........

Your answer will be at 11pm

Here is 12 ° at 12pm so it decrease at the rate of 2°per hour it means in 6 pm it will be zero 0° after it will go to below zero temperature at the same rate 2° per hour is in 11 pm it will be (-10°).

Answer 2

the temperature will be 11.p.m.

12 ×2=24 till noon

till midnight=24÷2=12

for- 10..= on no. line -----------12-----11--------10------

12 o ..