Question:
The total mass of Alvin, Brian and Calvin is (4n + 9) kg. The mass of Alvin is 2n kg and the mass of Brian is half of Alvin’s.
(a) What is the mass of Calvin? Give your answer in terms of n.
(b) Given n = 35, what is the mass of Calvin?
Solution:
![P6 / Maha Bodhi / 2019 / SA2 / Paper 2 – Q14 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/06/P6_Maha_Bodhi_2019_Prelims_Paper2_Q14-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nanyang / 2020 / SA2 Prelims / Paper 2 – Q14 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/11/P6_Nanyang_2020_SA2_Paper2_Q14-Qns.jpg?resize=400%2C260&ssl=1)