Question

give an example of two quantities x and y which vary inversely

Answer 1

if speed is x and time is y it is inverse

Answer 2

1) If x is the number of person then y will be number of days they can finish a work ( number of person will increase then it will take less time)

2) if x is speed then y will be time taken to travel a distance( if the speed will increase then it will take less time to reach a place)