The Fast and Furious Clock
Arpan has the misfortune to own an unreliable clock. This one speeds up by exactly 15 minutes every hour. It is now showing 03:00 a.m. and Arpan knows that it was correct at midnight, when he set it. The clock stopped four hours ago, what is the correct time? How to answer - If the time is 10 : 40 a.m. , then give the answer as 10 + 40/60 = 10 + 0.67 = 10.67.