Answer :
The temperature at day today = 62 degrees
Since at night the temperature will fall by 40 degrees, the temperature at night = 62 - 40 = 22 degrees
By 4 AM, the temperature will again fall by 40 degrees, so the final temperature at 4 Am = 22 - 40 = - 18 degrees
We can now conclude that there are two successive falls of 40 degrees.
Therefore, the temperature at 4 AM will be -18 degrees (negative)
The temperature at 4 AM is 18°F.
The temperature at 4 AM can be calculated by subtracting a total of 80 degrees from the initial temperature of 62 degrees Fahrenheit.
Initial temperature: 62°F
Temperature drop at nighttime: -40°F
According to the question, by 4 am there will be an additional drop of 40 degrees.
Thus, additional temperature drop by 4 AM: -40°F
Final temperature at 4 AM:
= 62°F - 40°F - 40°F
= -18°F.