Answer:
30 minutes will it take to reach its specified operating temperature from 25°C.
Step-by-step explanation:
Initial Temperature of oven = 25°C
Time taken by oven to reach 85°C temperature = 15 minutes
We have to find time taken by oven to reach at temperature of 145°C
Increase in temperature in 15 minute = 85 - 25 = 60°C
So, Time take by oven to increase 60°C temperature = 15 min
Time take by oven to increase 1°C temperature =
Temperature we have to increase = 145 - 25 = 120°C
Time take by oven to increase 120°C temperature =
Therefore, 30 minutes will it take to reach its specified operating temperature from 25°C.