Q. 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? 
  1. 7h 18 m 35s & 7h 51m 24s 
  2. 7h 19m 24s & 7h 52m 14s 
  3. 7h 20m 42s & 7h 53m 11s 
  4. 7h 21m 49s & 7h 54m 33s 
  5. Other

Dear student

Regards

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