Question:
Mrs Munah used 7/10 of a packet of flour to bake some cookies. She then had 2/5 kg of flour left.
a) What was the mass of flour in the packet at first? Leave your answer in kg.
b) Given that Mrs Munah used 1/15 kg of flour for each cookie, how many cookies did she bake?
Solution:
![P6 / Henry Park / 2020 / SA2 Prelims / Paper 1 – Q05 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/08/P6_SA2_2020_Henry_Park_Paper1_Q05-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Catholic High / 2019 / SA2 / Paper 2 – Q15 [5 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/06/P6_Catholic_High_2019_Prelims_Paper2_Q15-Qns.jpg?resize=400%2C260&ssl=1)