Question

Which is an example of inverse proportion?

• A. More amount of sweets, more total cost
• B. More length of cloth, more cost
• C. More expenditure, less saving
• D. More height of object, more length of its shadow

Answer 1

The correct option is C More expenditure, less saving

2 quantities say it be $x,y$ are said to be in proportion when the change in value of $x$ , leads to the equal change in value of $y$.

If $x$ increases and hence $y$ decreases proportionally, it is called Inverse proportion i.e $x\propto \frac{1}{y}$

For example, In option C, if our expenses are more, then we are left with lesser savings from a fixed salary or income.

hence, Expenditure and savings are in inverse proportion.

So the answer is C