Question:
Valerie had 40% more books than Isabelle. After Valerie bought some books, her number of books increased by 25%. Isabelle gave away 25% of her books. In the end, both the girls had 750 books altogether. How many books did Valerie have at first?
Solution:
![P6 / Ai Tong / 2020 / SA2 Prelims / Paper 1 – Q18 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/08/P6_SA2_2020_Ai_Tong_Paper1_Q18-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / CHIJ / 2019 / SA2 / Paper 2 – Q01 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/06/P6_CHIJ_2019_Prelims_Paper2_Q01-Qns-scaled.jpg?resize=400%2C260&ssl=1)