Question

calculate the longitude of the position of a ship whose navigation officer observes GMT as 21.20 hours, when the local time is 12 noon​

Answer 1

Answer:

Since the local time is 12 noon and GMT is 21:20, it means that the local time is 9 hours 20 minutes behind GMT. This shows that the place is to the west of the Prime Meridian. Each hour's difference corresponds to 15 degrees of longitude. Therefore, 9 hours difference means 9*15=135 degrees