Question

An important programme was to be broadcast from Mumbai at 7:30 p.m. This was heard by
some Indian sailors near Ivory Coast in West Africa at 20°W longitude. What was the local time there? pls solve step by step​

Answer 1

Explanation:

72°E-20°w=52(no. of longitude)

each longitude is 4min. so 90 longitude means 52×4=208min

then convert into the

208/60=3.46hr

then subtract this from 7.30 pm

7.30 pm-3hr =3pm approximately

because I confuse with 46 in 3.46hr