PSLE
Tiffany and Penelope took part in a cycling race. Tiffany cycled at a speed of 27 km/h. Both of them did not change their speed throughout the race. When Penelope covered ¹₂ the distance, Tiffany was 4.5 km in front of her. Tiffany reached the finishing line at 9.21 a.m. What time did Penelope reach the finishing line?
If Tiffany continued to cycle until Penelope reaches the finishing point, the extra distance she covered
= 2 x 4.5
= 9 km

Time taken by Penelope to complete the race
= Time taken by Tiffany to cycle 9 km
= ⁹₂₇ 
= ¹₃ h

1 h = 60 min
¹₃ h = ¹₃ x 60 = 20 min

20 min after 9.21 a.m.: 9.41 a.m.

Time that Penelope reached the finishing line: 9.41 a.m.

Answer(s): 9.41 a.m.