1mark 2018 ACS P6 Paper1 SA1 P6 / ACS / 2018 / SA1 / Paper 1 – Q03 [1 mark] Question: In 6.543, what does the 4 stand for ? Solution: Similar Posts P6 / ACS / 2020 / SA2 Prelims / Paper 1 – Q08 [1 mark] P6 / Henry Park / 2020 / SA2 Prelims / Paper 1 – Q27 [2 marks]