Minimum Sum for Fixed Product

Rarely Tested

Minimum Sum for Fixed Product

For positive numbers $$x$$ and $$y$$ with fixed product:

$$xy=P$$

their sum is minimum when:

$$x=y=\sqrt{P}$$

and:

$$x+y\geq2\sqrt{P}$$

Usage

- Used in optimization problems involving positive variables with a fixed product.

No related questions available for this formula yet.

Go back to topics

Join CAT 2026 course by 5-Time CAT 100%iler

Start your IIM journey with the right preparation and crack CAT 2026.