Question

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 degrees West)?
ICSE Class 9 Total Geography Ch 2:Geographic Grid- Latitudes and Longitudes

Answer 1

time difference:- 13 h 15 Min  -4h
                           9h 15min
                           9(60min)+15 min
                           540 min+ 15 min
                           555min

longitudinal difference:- 1 degree= 4 min
                                       555min=555/4
                                                   =138 degree 4 min
longitude of a place:- 138 degree 4min -88degree west= 50 degree 75 min
50 degree 75 min is a longitude of a place

Answer 2

Answer:

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...

hope it helps!!