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 / Nanyang / 2019 / CA1 / Paper 2 – Q14 [4 marks] P6 / Red Swastika / 2020 / SA2 Prelims / Paper 2 – Q12 [4 marks]