Question:
A box of cookies was shared between Jesse and Linn in the ratio of 7 : 4. Linn then decided to share her portion of cookies with her younger brother in the ratio 5 : 3 while Jesse shared her portion of the cookies with her elder sister in the ratio of 4 : 3. Among the four of them, the smallest portion of cookies was 12 pieces. How many pieces of cookies were there in the box at first?
Solution:
![P6 / ACS / 2018 / SA2 / Paper 2 – Q11 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2019/06/P6-ACS-2018-Paper2-Q11.jpg?resize=400%2C260&ssl=1)