The distance between Town E and Town F was 194 km. At 07 00, Kimberly left Town E and cycled towards Town F. Cindy left Town E and cycled towards Town F at 07 30. Cindy's cycling speed was 2 km/h faster than Kimberly. At 12 00, Cindy caught up with Kimberly. When Cindy was 18 km from Town F, she stopped to wait for Kimberly. How far was Kimberly from Cindy when she stopped to wait for him?
Duration in which Cindy cycled for before she caught up with Kimberly
= from 07 30 to 12 00
= 4 h 30 min
= 4 ³⁰₆₀ h
= 4 ¹₂ h

Distance that Cindy cycled more than Kimberly
= 4¹₂ x 2
= ⁹₂ x 2
= 7 km

Kimberly's cycling speed
= 7 x 2
= 14 km/h

Cindy's cycling speed
= 14 + 2
= 16 km/h

Distance that Cindy cycled before she stopped to wait for Kimberly
= 194 - 18
= 176 km

Duration that Cindy cycled for after she caught up with Kimberly and when she stopped to wait for Kimberly
= (176 ÷ 16) - 4¹₂
= 11 - 4¹₂
= 6¹₂ h

Distance Kimberly was from Cindy when she stopped to wait
= 2 x 6¹₂
= 13 km

Answer(s): 13 km