Delayed clock

Michael put a new battery into his watch at midnight. However, they are 5 seconds late each minute. How many hours does the watch show in 24 hours?

Result

t = 22:00 hh:mm

Step-by-step explanation:

$t=24.00-{\displaystyle \frac{5}{3600}}\cdot 24\cdot 60=22=22:00\text{ hh}:\text{mm}$

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