Question:
Eddy sold phone cards during a part-time holiday job. For every phone card sold, he would receive $0.60. For every 20 phone cards sold, he would receive an additional $4.50.
(a) How much did he receive after selling 20 phone cards?
(b) How many phone cards did Eddy need to sell to receive at least $150?
Solution:
![P6 / Tao Nan / 2020 / SA2 Prelims / Paper 2 – Q05 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/12/P6_Tao_Nan_2020_SA2_Paper2_Q05-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nanyang / 2019 / CA1 / Paper 1 – Q17 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/04/P6_CA1_2019_Nanyang_Paper1_Q17-Qns.jpg?resize=400%2C179&ssl=1)