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I left home for bringing milk between 7am and 8am. The angle between the hour-hand and the minute-hand was 90° I returned home between 7 am and 8 am. Then also the angle between the minute-hand and hour-hand was 90° At what time (nearest to second) did I leave and return home?

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An Intiative by Sri Chaitanya

7h 18m 35s & 7h 51 m 24s

7h 1gm 24s & 7h 52m 14s

7h 20m 42s & 7h 53m 11s

7h 21 m 4gs & 7h 54m 33s

answer is D.

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