A certain freezing process requires that room temperature be lowered f – InterviewSolution

1.	A certain freezing process requires that room temperature be lowered from 40°C at the rate of 5°C every hour. What will be the room temperature 10 hours after the process begins ?
Answer» Initial temperature = 40°C Room temperature decreases at 5°C per hour Temperature change in 1 hour = -5°C Temperature change in 10 hour = -5 × 10°C = -50°C Room temperature after 10 hours = Initial temperature + Temperature change in 10 hour = 40 + (-50) = 40 – 50 ∴ Room temperature after 10 hours = -10°C

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