A clock is set right at 8 a.m. The clock gains 10 minutes in 24 hours. What will be the true time when the clock indicates 1 p.m. on the following day?
Answer
Answer (as printed):
Explanation
Time from 8 a.m. on a day to 1 p.m. on the following day = 29 hours. 24 hours 10 min. of this clock = 24 hours of the correct clock. 145 hrs of this clock = 24 hrs of the correct clock. 6 6 29 hrs of this clock = 24 × × 29 hrs of the correct clock 145 = 28 hrs 48 min. of correct clock. ∴ The correct time is 28 hrs 48 min. after 8 a.m. This is 48 min. past 12. 826
Explanation as extracted from the printed page; notation may be imperfect.