Question
PSLE
Shiyun had 10k mangosteens. She bought another 5 mangosteens and received 2k mangosteens from her neighbours. Shiyun's sons then ate half of the remaining mangosteens. How many mangosteens had she left? Give your answer in terms of k in the simplest form.
2 m

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PSLE
Shiyun had 10k mangosteens. She bought another 5 mangosteens and received 2k mangosteens from her neighbours. Shiyun's sons then ate half of the remaining mangosteens. How many mangosteens had she left? Give your answer in terms of k in the simplest form.