Question:
A box contained some blue and red marbles. 1/4 of the marbles were blue. Jane added 20 green marbles into the box.
Each of the statements below is either true, false or not possible to tell from the information given. For each statement, put a (✓) to indicate your answer.
Solution:
![P6 / Nan Hua / 2020 / SA2 Prelims / Paper 1 – Q22 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/02/P6_SA2_2020_Nan_Hua_Paper1_Q22-Qns.jpg?resize=400%2C191&ssl=1)
![P6 / Nanyang / 2019 / CA1 / Paper 1 – Q27 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/04/P6_CA1_2019_Nanyang_Paper1_Q27-Qns.jpg?resize=400%2C260&ssl=1)