Answer :
Answer:
6am
Explanation:
Calculate the Time Difference:
City A is at 40° West Longitude.
City B is at 50° East Longitude.
To convert from degrees of longitude to time, we know that every 15° of longitude corresponds to 1 hour of time difference.
Longitude difference between City A and City B:
City A (40° West) to Prime Meridian (0°):
40
°
40°
Prime Meridian (0°) to City B (50° East):
50
°
50°
Total longitude difference =
40
°
+
50
°
=
90
°
40°+50°=90°
Time difference calculation:
90
°
90° of longitude difference corresponds to
90
15
=
6
15
90
=6 hours of time difference.
Determine the Time at City A:
City B's time is given as 12 a.m. (midnight).
Since City A is to the west of City B (40° West compared to 50° East), the time at City A would be ahead of City B.
Add the time difference to City B's time:
Time at City A = Time at City B + Time difference
Time at City A = 12 a.m. + 6 hours