1.

What will be the local time at Madras 80°E ? When it is 9 P.M. at New York 74° W ?

Answer»

Longitude of Madras = 80° E 

Longitude of New York = 74° W 

Difference in Degrees = 80° + 74° = 154° 

Difference in time per degree = 4 minutes 

Difference between the times of two places = 40 x 154 = 616 = 10 hour 16 minutes 

Since Madras lies East of New York, we shall add 10 hours 16 minutes to the local time of New York. The local time at Madras will therefore, be 7.16 A.M. next morning.



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