Mathematics 0580 · IGCSE · Equations

Equations — practice question

A bus journey is made by 12 adults and 9 children. Each adult ticket costs $n. Each child ticket costs $(n - 10)$. Altogether, the tickets cost $277.50.
(main)[3]

Determine the cost of one adult ticket.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$12n + 9(n - 10) = 277.50$” …

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