2025 SJI PRELIMS P1 Q26

2025 SJI PRELIMS P1 Q26

Secondary 4
7 marks

Lily leaves Town A at 0800 and cycles to Town C. The travel graph shows her journey.

  1. Write down what happens at 0930.[1]
  2. Find Lily’s average speed from Town B to Town C.[2]
  3. Lily leaves Town C at 1100 and continues to Town D at \(16\dfrac23\text{ km/h}\). Complete her journey on the graph.[2]
  4. Emily leaves Town C at 1030 and reaches Town D at 1236, travelling at constant speed without stopping. Draw her journey on the graph.[1]
  5. Find the distance from Town D when Emily and Lily pass each other.[1]

Solution:

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Answer:(a) rests at Town B (b) \(20\text{ km/h}\) (c) reaches D at 1212 (d) straight line (e) \(9\text{ km}\)

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