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 kilometers, then from Town B to Town C, which involves cycling downhill for 15 kilometers, and finally from Town C to Town A, which involves cycling on a flat road for 20 kilometers. 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-kilometer 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
$$
t_{2}=\frac{20}{30}+\frac{15}{10}+\frac{10}{40}=2 \frac{5}{12} \text { (hours). }
$$

Therefore, the additional time Minnie spent compared to Penny is
$$
\left(t_{1}-t_{2}\right) \times 60=65 \text { (minutes). }
$$