Question
A mobile phone costs $200 less than a massage chair. A hi-fi system costs twice as much as a massage chair. Given that the total cost of a mobile phone, a massage chair and a hi-fi system cost $5000, find the cost of the mobile phone.
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A mobile phone costs $200 less than a massage chair. A hi-fi system costs twice as much as a massage chair. Given that the total cost of a mobile phone, a massage chair and a hi-fi system cost $5000, find the cost of the mobile phone.