A clock is set right at 5 a.m. The clock loses 16 minutes in 24 hours. What will be the true time when the clock indicates 10 p.m. on 4th day?
Answer
Answer (as printed):
Explanation
Time from 5 a.m. on a day to 10 p.m. on 4th day = 89 hours. Now 23 hrs 44 min. of this clock = 24 hours of correct clock. 356 ∴ hrs of this clock = 24 hours of correct clock. 15 15 89 hrs of this clock = 24 × × 89 hrs of correct clock = 90 hrs of correct clock. 356 So, the correct time is 11 p.m.
Explanation as extracted from the printed page; notation may be imperfect.