The speed of a boat in still water is 25 km/h. The speed of the stream is 3 km/h. Let the boat take a total of x hours to travel 112 km downstream and then 44 km upstream, and the boat takes total y hours to travel 112 km upstream and then 44 km downstream. Find the value of x + y in hours.
1
\(\frac{915}{77}\)
2
\(\frac{475}{77}\)
3
\(\frac{575}{77}\)
4
\(\frac{975}{77}\)