Question

Calculate the longitude of a place where it is 6 a.m, when it is 9 p.m. at New Delhi

Answer 1

(1)-There is a time difference of 4 minutes in each longitude.
(2)-Delhi is at longitude 77*E and there is a time difference of 15hours = 900minutes.
(3)-The place is at longitude =900/4= 225 longitudes away from delhi