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?
Answer & explanation
Correct answer: option 1
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.