Question

The temperature of a hot metallic rod is 278°c .lf it is made to cool off at the rate of 7°C every minute,then what will be it's temperature after 20 minutes.

Answer 1

Answer

140°c

Step-by-step explanation:

The temperature of a hot metallic rod=278°c

it is made to cool off at the rate of =7°c

it's temperature after 20 min = 7°c * 20

= 140°c (ans)

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