Question

At noon the temperature was 5*C. Over the next 4 hours the temperature dropped another 7 degrees. Then every hour until 9:00 the temperature rose 3 degrees. What was the temperature at 9:00?

Answer 1

5-7=-2

-2+(3 x 5)=13

13 is the answer

also the 5 came from the leftover time. because if it started at 12 and then 4 hours passed it would now be 4 and there are 5 hours left from 4 to 9