PSLE
Vanessa and Sabrina took part in a cycling race. Vanessa cycled at a speed of 15 km/h. Both of them did not change their speed throughout the race. When Sabrina covered ¹₅ the distance, Vanessa was 2.4 km in front of her. Vanessa reached the finishing line at 12.48 p.m. What time did Sabrina reach the finishing line?
If Vanessa continued to cycle until Sabrina reaches the finishing point, the extra distance she covered
= 5 x 2.4
= 12 km

Time taken by Sabrina to complete the race
= Time taken by Vanessa to cycle 12 km
= ¹²₁₅ 
= ⁴₅ h

1 h = 60 min
⁴₅ h = ⁴₅ x 60 = 48 min

48 min after 12.48 p.m.: 1.36 p.m.

Time that Sabrina reached the finishing line: 1.36 p.m.

Answer(s): 1.36 p.m.