Two towns X and Y are situated on the Equator. If town X is on the Greenwich Meridienand town Y is on longitude 45°E, what will be the town Y, if the time a...

The town X is located on the Greenwich Meridian, which is considered as the starting point of the longitude system and has a longitude value of 0°. On the other hand, town Y is located 45° east of the Greenwich Meridian, meaning its longitude value is 45°E. Since the Earth rotates 360° in 24 hours, it means that for every hour, the Earth rotates by 15°. Hence, when it is 4.00pm at town X, it will be ahead by 4 hours (or 4 * 15°) from the Greenwich Meridian. Now, if we calculate the time difference between the two towns, we can find out the time at town Y. The time difference between the two towns would be equal to the longitude difference divided by 15. So, the time difference between the two towns is 45°/15 = 3 hours. Therefore, when it is 4.00pm at town X, it will be 4.00pm + 3 hours = 7.00pm at town Y.