Question

2. What is the longitude of a place where the local time is 1:15 p.m., when it is 4 a.m. at Chicago
(88°W)?​

Answer 1

There are 24 hours in a day and 360 degrees around the equator so there are 360/24= 15 degrees per hour. 1:15 pm is 9.25 hours later than 4:00 am so (9.25)(15)= 138.75 degrees east of Chicago. That is 138.75- 88= 50.75 degrees east longitude.

here's your answer.