Question

At town A (5°N,60°W),the time is 7:30p.m. At town B the local time is 4:15p.m. What is the longitude of town B?​

Answer 1

Answer: 11°15'W

Explanation: Time Difference between Town A and Town B: (7:30-4:15)= 3hours and 15 minutes= 195minutes

We know that 4minutes= 1° of longitude

Then, 1minute= 1/4° of longitude

Then, 195minutes= 195/4° of longitude

= 48°45' of longitude difference

So longitude of town B= (60°- 48°45')

= 11°15' W