Question:
A schedule of an on-line course is as shown. One activity leads to another without any break in between.
Mrs Lee was 5 minutes late for the Zoom session. She left 10 minutes before the end of the Question-and-Answer session. How long did Mrs Lee attend the on-line course?
Solution:
![P6 / Nanyang / 2019 / SA2 / Paper 2 – Q04 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_Nanyang_2019_Prelims_Paper2_Q04-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Tao Nan / 2019 / SA1 / Paper 2 – Q12 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/05/P6_Tao_Nan_2019_SA1_Paper2_Q12-Qns.jpg?resize=400%2C161&ssl=1)