5 - 6 pm
if the temperature drops 3 degrees per hour. so how many hours would it take to go from 98.6 to 86.3
98.6-86.3=12.3
3 goes into 12 4 times.
10 pm - 4 hours is 6pm.
if you figure in the .3
you come to approximately 5pm
The time of the murder can be designated around:
5 - 6 pm
Given that,
Time of witnessing the murder = 10:00 PM
Body's temperature at that time = 86.3° F
Body's temperature after 1 hour = 83.3° F
So,
The temperature dropping every hour = 3° F
The reduction in the temperature of the body from normal temperature to 86.3° F at 10 PM:
= 98.6° F - 86.3° F
= 12.3° F
Now,
To find the duration since the body is lying there, we will be dividing the total drop in temperature till 10 PM by the drop in temperature every hour:
= 12.3/3
= 4.1 hours
So,
4 hours before 10:00 PM(2200 hours)
= 2200 - 4 hours
= 1800 hours
∵ 6:00 PM is the time when the person would have been murdered.
Learn more about "Temperature" here:
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