What was the local time in Tokyo situated at $139^{o} 45^{'}$ East longitude, when the president of India was hosting the Indian National Flag in the presence of Japanese prime Minister at $10$ a.m. in New Delhi? The viewer in Japan were watching live telecast of this event.

6.11

a.m.

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1.39

a.m.

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2.49

a.m.

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1.49

p.m.

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Solution

The correct option is C $1.49$ p.m.
In India, the time of Delhi is calculated by 82°30’ east longitude. Tokyo is situated at 139°45’ East longitude.

So, the difference between the longitudes is 139°45’ – 82°30’ = 57°15. So, the time difference between Delhi and Tokyo is 57°×4 minute.

= 228 min. (as 1° longitude is equal to 4 min.)

= 3 hrs. 48 min

Time in japan is 3 hrs. 48 min ahead and hence the time is 1.48 pm

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What was the local time in Tokyo situated at 139o45′ East longitude, when the president of India was hosting the Indian National Flag in the presence of Japanese prime Minister at 10 a.m. in New Delhi? The viewer in Japan were watching live telecast of this event.

What was the local time in Tokyo situated at $139^{o} 45^{'}$ East longitude, when the president of India was hosting the Indian National Flag in the presence of Japanese prime Minister at $10$ a.m. in New Delhi? The viewer in Japan were watching live telecast of this event.