Mathematics for IGCSE & O level - Proportion (Section 1 - No. 4)
Which scenario best represents a direct proportion relationship?
The number of workers and the time it takes to complete a task.
The speed of a car and the time it takes to travel a fixed distance.
The number of items purchased and the total cost.
The length and width of a rectangle with a fixed area.
Explanation
In direct proportion, as one variable increases, the other increases proportionally. The number of items purchased directly affects the cost.
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