Correct Answer - Option 1 : 11 p.m

Clock loses 16 minutes a day i.e. 16 minutes in 24 hours.

Total time between 5 a.m. on first day and 10 p.m. on the fourth day = 24 hours + 24 hours + 24 hours + 17 hours = 89 hours.

Now, 23 hours 44 minutes of this clock = 24 hours of the correct clock.

356/15 hours of this clock = 24 hours of the correct clock.

Thus, 89 hours of this clock = (24 × 31556 × 89) or 90 hours of the correct clock.

Therefore, the correct time would be 5 a.m. p.m. + 90 hours i.e. 11 p.m.

Hence, **11 p.m. **is correct.