When C meets B, the distance traveled by two cars is AB, and when C meets A, the distance traveled by two cars is AB.

10 minutes = 1/6 hours.

Let the time it takes C to meet B be x,

50X+45X = 50 *(X+ 1/6)+40 *(X+ 1/6)

95X=(X+ 1/6)*(50+40)

95X=(X+ 1/6)*90

95X=90X+ 15

X=3

95 * X = 285KM km

A: The distance between a:AB and the city is 285 kilometers.