an A.C. cools the room at the rate of 5°C pre hour . what would be the final temperature of the room after 6 hour , if the initial temperature of the room is 40°C?
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Answer:
10 °C
Step-by-step explanation:
cools means decreasing the temperature
decreasing means -ve integer
= -5
after 6 hours it will be reduced 6 × -5 = -30
after 6 hours the temperature will be 40+(-30)
as we know + × - = - , so it will become 40 -30=10°C
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