At 11.35am, Aloysisus left town
x and travelled to town Y at a constant speed of 72km/h. At 12.25pm, Royden left town X and travelled to town Y at a constant speed of 97km/h.
(a) At what time did Royden overtake Aloysius?
(b) When Royden reached town Y, Aloysius was still 120km behind him. At what time did Aloysius reach town Y?
- iammclaneLv 72 months ago
It's actually a "distance" question. We know the speeds. We just don't know the distance between X and Y. If we knew it, we could easily determine their arrival times, since we know their speeds. We know there's a 50/60ths times 72km positive difference between their locations when Royden starts moving. We also know there's a 120km negative difference when Royden stops moving.
Is that enough to get you started?