1.

A body in air at 25℃ cools from 100℃ to 75℃ in 1 minute. What is the temperature of the body at the end of 3 minutes? (Take log(1.5)=0.4)

A. 40℃
B. 47.5℃
C. 42.5℃
D. 50℃
Answer» C. 42.5℃


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