Question:
Ethan and Daniel have some marbles. If Ethan gives Daniel 16 marbles, both of them will have an equal number of marbles. If Daniel gives Ethan 9 marbles, the ratio of the number of marbles Ethan has to the number of marbles Daniel has will be 6 : 1. How many marbles do the two boys have altogether?
Solution:
![P6 / Tao Nan / 2019 / SA2 / Paper 2 – Q10 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_Tao_Nan_2019_Prelims_Paper2_Q10-Qns.jpg?resize=400%2C260&ssl=1)