Norfolk to Chadron On Monday Chuck drove from Norfolk to Val

Norfolk to Chadron
On Monday Chuck drove from Norfolk to Valentine averaging 47 mph.
On Tuesday he continued to Chadron averaging 69 mph.
His driving time on Monday was 2 hours longer than his driving time on Tuesday.
If the total distance from Norfolk to Chadron is 326 miles, than how many hours did he drive on Monday?
How far is Valentine to Chadron?

Solution

The equation is
N to V is t=2
V to C is t
Distance is time x speed
N to V is 47 mph
V to C is 69 mph
47(t+2) + 69 t = 326
t = 2
Then N to V is 4 hours or 188 miles
and V to C is 2 hours or 138 miles