Question

an idle road was heated to 200 degree Celsius and left for pulling after 3 every 3 minutes it cools down by 25 degree Celsius what is the temperature of the Iron Road after half an hour​

Answer 1

an iron is heated to 200 degree celsius and left for cooling

after every 3 mins it cools down by 25 degree celsius

total decrease in temperature every half an hour =?

half an hour = 30mins

30/3 = 10

25 x 10 = 250 degree celsius fall

therefore after half an hour the temperature of iron rod = 200 - 250 = -50 degree celsius

therefore temperature of iron rod = -50 degree celsius after half an hour

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