Question #de0ac

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Answer 1 · 2017-08-07T19:35:45

$10$ $"mins"$ $50$ $"secs"$

18:00 Wednesday $to$ 00:00 Thursday = 6 hours
00:00 Thursday $to$ 00:00 Friday = 24 hours
00:00 Friday $to$ 09:00 Friday = 9 hours

24+6+9=39 hours

$39/6=6.5$ , $6.5*1$ $"minute"$ $=6$ $"mins"$ $30$ $"secs gained"$

$39/9=4.dot(3)$ , $4.dot(3)*1$ $"minute"$ $=4$ $"mins"$ $20$ $"secs lost"$

$6$ $"mins"$ $30$ $"secs"$ $=390$ $"secs"$

$4$ $"mins"$ $20$ $"secs"$ $=260$ $"secs"$

$390-(-260)=390+260=650$ $"secs"$

$650/60=10$ $"mins"$ $50$ $"secs"$