Question
Mr Loh is 49 kg heavier than his son, Sean and 30 kg heavier then his daughter, Xuan. Given that their total mass is 230 kg, how much does Mr Loh weigh?
4 m

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Mr Loh is 49 kg heavier than his son, Sean and 30 kg heavier then his daughter, Xuan. Given that their total mass is 230 kg, how much does Mr Loh weigh?