Question

If the it's noon at Greenwich what's the time at Alexandria located at 30 degrees East

Answer 1

Answer:

The longitudinal difference O

degrees and 69 degrees East.

•)69 degrees. 69×4= 276 minutes .276÷ 60-4 hrs 36 minutes.

•)12 noon + 4 hrs 36 minutes=4 pm past 36 minutes

Longitudinal difference between

O Degrees and 30 Degrees West-30 Degrees.

30 x4 = 120 minutes.120-60= 2 hrs.

•)This being to the west is 2 hrs from 12noon on Greenwich.

12-2=10am. It would be the local time on 30

Degrees Longitude.

Longitudinal difference between

O degree and 12 Degrees East is 12 Degrees.

12×4-48 minutes.

•)This is to be added into 12 noon as it is to the east of Greenwich.

So on 12 Degrees East the local time would be 12hrs + 48 minutes

= 12hrs48 minutes.

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