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A clock is set right at 5 am. The clock loses 16 minutes in 24 hours. What will be the true time when the clock indicates 10 pm on the 4th day?
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- 9 am
- 11 pm
- 11 am
- 9 pm
Correct Option: B
As per the given above question , we can say that
From 5 am on first day to 10 pm on 4th day is 89 hours.When a clock loses 16 minutes then 23 hours 44 minutes of this clock are the same as 24 hours of correct clock,
| i.e., | 356 | hours of this clock = 24 hours of correct clock. |
| 15 |
| ∴ 1 hours of this clock = |  |  | hours of correct clock | 356 |
| ∵ 89 hours of this clock = | | x 89 | | hours of correct clock | 356 |
∴ Required true time = 90 hours of correct clock
Hence ,the correct time is 11 pm.
