P6 / Ai Tong / 2019 / SA2 / Paper 2 – Q12 [4 marks]

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: