Question
PSLE
Olivia had 9n mangosteens. She ate 3 mangosteens and gave 3n mangosteens to her cousins. Olivia's sisters then ate half of the remaining mangosteens. How many mangosteens had she left? Give your answer in terms of n in the simplest form.
2 m

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PSLE
Olivia had 9n mangosteens. She ate 3 mangosteens and gave 3n mangosteens to her cousins. Olivia's sisters then ate half of the remaining mangosteens. How many mangosteens had she left? Give your answer in terms of n in the simplest form.