Mathematics for IGCSE & O level - Proportion (Section 2 - No. 42)
In which of the following scenarios is inverse proportion demonstrated?
The amount of paint needed and the area painted.
The number of workers and the time to complete a job.
The distance traveled and the time taken at a constant speed.
The height of a tree and its age.
Wyjaśnienie
Inverse proportion means as one quantity increases, the other decreases proportionally. In the case of workers and time, as more workers are present, the time to complete a task goes down.