jmc

Question

It is now 12:00:00 midnight, as read on a 12-hour digital clock. In 122 hours, 39 minutes and 44 seconds the time will be A:B:C. What is the value of A + B + C?

Accepted Answer

Since the clock reads the same time every 12 hours, we find the remainder after dividing 122 hours by 12 hours, which is 2 hours. Counting forward from midnight, the clock will read 2:39:44, so A+B+C = 85.