Question:
A fruit seller put some apples and oranges into Box A and Box B. The ratio of the number of fruits in Box A to the number of fruits in Box B is 8 : 5. The ratio of the number of apples to the number of oranges in Box A is 1 : 3. 7/10 of the fruits in Box B are apples and there are 72 oranges in Box A. Find the number of oranges in Box B.
Solution:
![P6 / ACS / 2019 / CA1 – Q12 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/01/P6_ACS_2019_CA1_Q12-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nanyang / 2019 / SA2 / Paper 2 – Q17 [5 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_Nanyang_2019_Prelims_Paper2_Q17-Qns.jpg?resize=400%2C260&ssl=1)