P6 / Nanyang / 2019 / CA1 / Paper 2 – Q14 [4 marks]

Question:

Yumi had 90 more stickers than Martin at first. Yumi gave away 90% of her stickers to her sister and Martin gave away 60% of his stickers to his brother. In the end, Martin had twice as many stickers as Yumi. How many stickers did Yumi have at first?

Solution: