A cup of tea cools from 80°C to 60°C in one minute. The ambient temp – McqOptions

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1.	A cup of tea cools from 80°C to 60°C in one minute. The ambient temperature is 30°C in cooling from 60°C to 50°C, it will take?
A.	50 sec
B.	90 sec
C.	60 sec
D.	30 sec
Answer» B. 90 sec

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