Mountain Biking

Algebra Level 2

Sunny goes mountain biking every Saturday. The trail is \(96\) km long, and is uphill all the way to the top.
His uphill speed is \(16\) km per hour slower than his normal speed.
His downhill speed is \(8\) km faster than his normal speed.
If a round trip on the trail takes \(6\) hours, what is his normal speed (in km/h)?


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