Question:
The first three figures of a pattern are shown below.
The table shows the number of white and grey squares used for each figure.
(a) Fill in the table for Figure 4.
(b) How many grey squares are used for Figure 169?
(c) Find the total number of white and grey squares in Figure 169.
Solution:
![P6 / Catholic High / 2020 / SA2 Prelims / Paper 1 – Q03 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/06/P6_SA2_2020_Catholic_High_Paper1_Q03-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Tao Nan / 2019 / SA2 / Paper 2 – Q17 [5 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_Tao_Nan_2019_Prelims_Paper2_Q17-Qns.jpg?resize=400%2C260&ssl=1)