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 / ACS (Junior) / 2021 / SA2 Prelims / Paper 1 – Q06 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/05/P6_SA2_2021_ACS_Junior_Paper1_Q06-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nan Hua / 2020 / SA2 Prelims / Paper 1 – Q30 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/02/P6_SA2_2020_Nan_Hua_Paper1_Q30-Qns.jpg?resize=400%2C260&ssl=1)