At 06 25, Sabrina left Town S and cycled towards Town T. Tina left Town S and cycled towards Town T at 06 55. Tina's cycling speed was 2 km/h faster than Sabrina. At 15 25, Tina caught up with Sabrina. Find the cycling speed of each cyclist.

1. Sabrina
2. Tina

(a)
Duration that Tina cycled from 06 55 to 15 25
= 8³⁰₆₀
= 8¹₂ h

Distance that Tina cycled more than Sabrina
= 8¹₂ x 2
= 17 km

However, since Sabrina left 30 minutes earlier than Tina and Tina caught up with Sabrina, it means that Sabrina has cycled 17 km in 30 min.

1 h = 60 min 
30 min = 30 ÷ 60 = ¹₂ h

Sabrina's cycling speed
= 17 ÷ ¹₂
= 17 x ²₁
= 34 km/h

(b)
Tina's cycling speed
= 34 + 2
= 36 km/h

Answer(s): (a) 34 km/h ; (b) 36 km/h