A clock is set right at 5 a.m. The clock loses 16 minutes in 24 hours. What will be the correct approximate time when the clock indicates 10 p.m. on 4th day?

11 p.m

The correct answer is Option (1) → 11 p.m

• Clock loses 16 min in 24 hours
  ⇒ Loss per hour = 16/24=2/3 min

• From 5 a.m. to 10 p.m. on 4th day
  = 3 days + 17 hours = 89 hours

• Total loss in 89 hours
  = 89×2/3≈ 59 ≈ 1 hour

• Since the clock is slow, actual time = shown time + loss

• 10 p.m.+1 hour=11 p.m.