The temperature at 12 noon was 10 degree celsius above the zero. If it decreases at the rate of 2 c per hour until mid-night, at what time would the temperature be 8C below zero? What would be the temperature at mid-night?

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The temperature at 12 noon was 10 degree celsius above the zero. If it decreases at the rate of 2 c per hour until mid-night, at what time would the temperature be 8C below zero? What would be the temperature at mid-night?

M. D Nadeem 14th Jun, 2020

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Mayank Chowdhary 14th Jun, 2020

It's a simple cross multiplication sum. If at 12 noon the temperature is 10 degrees Celsius above zero and it decreases at a rate of 2 degree Celsius per hour then it will be 8 degree Celsius BELOW zero at 9 pm. At midnight the temperature will be 18 degrees Celsius below zero.

Thank you.

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