Question
A mobile phone costs $100 less than a hard drive. A projector costs twice as much as a hard drive. Given that the total cost of a mobile phone, a hard drive and a projector cost $6100, find the cost of the mobile phone.
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A mobile phone costs $100 less than a hard drive. A projector costs twice as much as a hard drive. Given that the total cost of a mobile phone, a hard drive and a projector cost $6100, find the cost of the mobile phone.