A bookkeeper needs to post the cost of a desk and chair into his records. The cost of the desk was five times the cost of the chair. The total cost of both the desk and chair was $720. What was the cost of the chair?

Question

Mathematics

Dean

20 August, 12:56

A bookkeeper needs to post the cost of a desk and chair into his records. The cost of the desk was five times the cost of the chair. The total cost of both the desk and chair was $720. What was the cost of the chair?

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Answers (1)

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Jose Nichols · Answer 1

Form an equation;

let c = chair and d=desk

d = 5 x chair

720 = c + d

Rewrite the equation in terms of chair

c + 5c = 720

6c = 720

c = 120

Check: 120 + (5x120) = 720

120 + 600 = 720