Question

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

• A. 11 p.m
• B. 10 p.m
• C. 9 p.m
• D. 8 p.m

Answer 1

Answer: (A)

11 p.m

Time from 5 a.m. on a day to 10 p.m. on 4th day is 89 hours. Now, 23 hrs. 44 min. of this clock are the same as 24 hours of the correct clock.
i.e.,3561535615 hrs. of this clock = 24 hrs. of correct clock
∴∴ 89 hrs. of this clock = (24×15356×89)(24×15356×89) hrs. of correct clock=
90 hrs of correct clock
So, the correct time is 11 p.m