In a room where the temperature is 30° C, a body cools from 61° C to 59° C in 4 minutes. Calculate the time taken by the body to cool from 51° C to 49° C.

Time is approximately equal to 6 min. If my answer is correct approve it and i will tell u the solution.

please tell me the right answer so that i can find where i am making a mistake.

if you want answer in log then it is 4(ln19/21)/(ln29/31).

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