Question

1. At town X (5°N, 60°W) the time is 7.30 p.m. At town Y the time is 4 p.m. What is the longitude of town Y? Show your working.

2. Calculate the longitude of the position of a ship whose navigation officer observes that GMT is 18.36 hours
when the ship's local time is 12 noon. Show your working.

3. A ship crossing the International Date Line from the Asian side at 11 p.m. on 26 December (Boxing Day) finds
that it is 11 p.m. on 25 December (Christmas Day) on the American side. Explain the reason for this.

4. Calculate the longitude of the position of a ship whose navigation officer observes that GMT is 17.15 hours
when the local time is noon. Show your working.

5. What is the time and day at a certain place X (Lat. 25°N Long. 33°W), when it is 2.30 a.m. on Thursday at a place Y (Lat. 25°S Long. 22°E)?



Help❤️​

Answer 1

1. 5 hours would cover 37.5°. Add 37.5 degree to station A location i.e 5°N,60°W. The answer would be 98°.