Question

If the local mean time at 45° W is 12:00 noon, what will be the local mean time at 90°E?

Answer 1

Answer:

Explanation:

If it is 12 noon at Greenwich, calculate the local time of the places located on the following longitudes: 69°E, 30°W and 12°E?

43 Answers

Vinay Sheel Verma

Vinay Sheel Verma, Cleared UPSC CSE mains 2018

Updated Mar 9, 2018

every 1° is equal to 4 minutes.

If it is on west of greenwich median than substract the calculated time from actual time of GMT and if it is on east than add.

69°E = 69×4 = 276 minutes i.e 4 hours 36 minutes.

time on greewich is 12:00 . so, time on 69°E is

12 +4 hr 36 min = 16:36

similarly in case of 30°west we have to substract the time i.e

12 - 2 hrs = 10:00

and for 12°E again add

12+48 min = 12:48

Hope this was helpful.

Thanks for A2A

P.S

Time I followed here is military time i.e 24 hours clock.

East or west of longitudes measures from 0° i.e greenwich median line.

Answer 2

Answer:

I will answer it

Explanation:

so, as 1°stands for 4 min

total difference of degrees

90+45 as its N and S so it is

135

now in min 135×4 540

12hours - 540 min

this is answer

mark as brain

hope it helps