Question
A stereo system costs $120 less than a computer. A hi-fi system costs twice as much as a computer. Given that the total cost of a stereo system, a computer and a hi-fi system cost $4000, find the cost of the stereo system.
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A stereo system costs $120 less than a computer. A hi-fi system costs twice as much as a computer. Given that the total cost of a stereo system, a computer and a hi-fi system cost $4000, find the cost of the stereo system.