Question

If news is broadcast from london at 10:30 am,at what time it will be heard at bahgdad(45°e)

Answer 1

Time at London (0° longitude) is 10:30 am

Baghdad is at 45°E

Difference in longitudes=45°

For every 1° longitude, there is a difference of 4 minutes

= For 45° longitude there will be a difference of

=(45*4)minutes =180 minutes or 3 hours

As Baghdad is towards the east of London, it'll be ahead of time at London

=time at Baghdad=(10:30am+3 hours)

=1:30pm

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Answer 2

Let us assume the present time at London (0° longitude) is 10:30 am .

Explanation:

Similarly, let us assume the present time in Baghdad is at 45°E .

Difference in the longitudes of both the locations = 45°

Also, each 1° of longitude, there is a difference of minimum 4 minutes

= i.e., for 45° longitude, there will be a difference of

=(45*4)minutes = 180 minutes or 3 hours

Baghdad is towards the east of London and will be ahead of time at London  = time at Baghdad = (10:30 am + 3 hours)

= 1:30 pm

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