Question

The temperature at 12 noon at a certain place was 20 degree above zero. If it decreases at the rate of 3 degree per hour, at what time it would be 12 degree below zero?
a) 12 midnight
b) 12 noon
c) 10 am
d) 10 pm

Answer 1

Answer:

Step-by-step explanation:

a) is the answer.

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