9. Minnie and Penny are cycling on the same road. Minnie's cycling speeds on flat, downhill, and uphill sections are 20 km/h, 30 km/h, and 5 km/h, respectively; Penny's cycling speeds on flat, downhill, and uphill sections are 30 km/h, 40 km/h, and 10 km/h, respectively. Now, Minnie is traveling from Town A to Town B, which involves cycling uphill for 10 km, then from Town B to Town C, which involves cycling downhill for 15 km, and finally from Town C to Town A, which involves cycling on a flat road for 20 km. Penny takes another route to complete the entire journey, starting from Town A, passing through Town C and Town B, and returning to Town A. How many more minutes does Minnie spend to complete the 45 km journey compared to Penny?
(A) 45
(B) 60
(C) 65
(D) 90
(E) 95
9. C.

Minnie's time spent is
$$
t_{1}=\frac{10}{5}+\frac{15}{30}+\frac{20}{20}=3 \frac{1}{2} \text { (hours), }
$$

Penny's time spent is $t_{2}=\frac{20}{30}+\frac{15}{10}+\frac{10}{40}=2 \frac{5}{12}$ (hours).
Therefore, the extra time Minnie spent compared to Penny is $\left(t_{1}-t_{2}\right) \times 60=65$ (minutes).