Question

an body cools down from 80°C to 60°C in 5 minutes The temperature pf the surrounding is 20°C. The time taken to cool from 60°C to 40°C is

• A. $\frac{25}{3}s$
• B. 500 s
• C. 450 s
• D. 420 s

Answer 1

Answer: (B)

500 s

Answer 2

The correct option is(B): 500 s