Question

the temperature in evening on a decreased form 17 degree Celsius at 4 o'clock p.m. to minus -7 degree Celsius at 10 o clock P.M find the number of degrees the temperature decrease at each hour if the same amount decrease each hour

Answer 1

Temperature at 4pm = 17degree celsius
Temperature at 10 pm = - 7 degree celsius.
Time duration = 6hrs
Difference in temperature = 24 degree celsius.
Decrease in temperature per hour = 24÷6
which is equal to 4 degree celsius.
So 4 degree celsius decreases ahter each hour.

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