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Answer

Correct Option is 5:30 A.M

"As we know Earth rotates 360 ° in 24 hours, Per hour earth will cover (360/24 ) 15°degrees. Therefore, 15 degree= 1 hour and 1 degree = 4 minutes Now according to the given problem , we know while moving east from Greenwich the time increases . So difference between GMT and IST(82.5 degree)= 82.5-0 is 82.5 degrees And 1 degree =1/15 hours So 82.5 degree= 1/15 X 82.5=5.5 That is 5 and a half hour ahead So, 5:30 P.M"

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