Number of workers on a job and time taken by them to complete the job, Inverse variation, Petrol filled in the tank of a vehicle and its cost, Direct variation, Number of pipes of same size to fill a tank and time taken by them to fill the tank, Inverse variation, Area of circle and its radius, Direct variation.

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?