1.  A clock is set right at 8 a.m. The clock gains 10 minutes in 24 hours will be the true time when the clock indicates 1 p.m. on the following day?
A. 48 min. past 12
B. 46 min. past 12
C. 45 min. past 12
D. 47 min. past 12

Answer: Option A

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  
6

=24 hours of the correct clock.

29 hours of this clock

= 24 x 6 x 29 hours of the correct clock.
145

= 28 hrs 48 min of the correct clock.

Therefore, the correct time is 28 hrs 48 min. after 8 a.m. 

This is 48 min. past 12.