At 09 25, Linda left Town N and cycled towards Town P. Sabrina left Town N and cycled towards Town P at 09 55. Sabrina's cycling speed was 2 km/h faster than Linda. At 14 25, Sabrina caught up with Linda. Find the cycling speed of each cyclist.

1. Linda
2. Sabrina

(a)
Duration that Sabrina cycled from 09 55 to 14 25
= 4³⁰₆₀
= 4¹₂ h

Distance that Sabrina cycled more than Linda
= 4¹₂ x 2
= 9 km

However, since Linda left 30 minutes earlier than Sabrina and Sabrina caught up with Linda, it means that Linda has cycled 9 km in 30 min.

1 h = 60 min 
30 min = 30 ÷ 60 = ¹₂ h

Linda's cycling speed
= 9 ÷ ¹₂
= 9 x ²₁
= 18 km/h

(b)
Sabrina's cycling speed
= 18 + 2
= 20 km/h

Answer(s): (a) 18 km/h ; (b) 20 km/h