PSLE
Penelope and Natalie took part in a cycling race. Penelope cycled at a speed of 27 km/h. Both of them did not change their speed throughout the race. When Natalie covered ¹₂ the distance, Penelope was 4.5 km in front of her. Penelope reached the finishing line at 11.34 a.m. What time did Natalie reach the finishing line?
If Penelope continued to cycle until Natalie reaches the finishing point, the extra distance she covered
= 2 x 4.5
= 9 km

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

1 h = 60 min
¹₃ h = ¹₃ x 60 = 20 min

20 min after 11.34 a.m.: 11.54 a.m.

Time that Natalie reached the finishing line: 11.54 a.m.

Answer(s): 11.54 a.m.