Question

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

Answer 1

Answer:

a) On 10 am

b) it will be 36 degrees below zero

Answer 2

Explanation:

Temperature decreases 2°c per 1 hour

Temperature decreases 1°c =½ hour

Temperature decreases 18°c =½×18 = 9hr

Total time = 12noon + 9 hours

= 21 hours = 9 pm

At 9 pm temperature would be 8°c below 0°c

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