Question:
Ali and Jim had some red and blue marbles. Jim had twice as many marbles as Ali. Ali had red and blue marbles in the ratio of 1 : 5. Jim had red and blue marbles in the ratio of 5 : 3. What was the ratio of the their total number of red marbles to their total of blue marbles?
Solution:
![P6 / Nan Hua / 2019 / SA2 / Paper 2 – Q12 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_Nan_Hua_2019_Prelims_Paper2_Q12-Qns.jpg?resize=400%2C260&ssl=1)
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