Question:
A van left Town A for Town B travelling at an average speed of 92 km/h for the first 30 minutes of the journey. Then the van drove another 32 km at an average speed of 80 km/h before reaching Town B. What was the average speed of the van for the whole journey?
Solution:
![P6 / Catholic High / 2019 / SA2 / Paper 2 – Q06 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/06/P6_Catholic_High_2019_Prelims_Paper2_Q06-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Ai Tong / 2019 / SA2 / Paper 2 – Q06 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/06/P6_Ai_Tong_2019_Prelims_Paper2_Q06-Qns.jpg?resize=400%2C260&ssl=1)