JIPMAT 2021 (QA) PYQs

The average of five consecutive numbers is a. If the next two numbers are also included, how will the average vary?

Match List I with List II. Choose the correct answer from the options given below:

If the mean of $a$, $b$, and $c$ is $M$; $ab + bc + ca = 0$; and the mean of $a^2$, $b^2$ and $c^2$ is $KM^2$, then $K$ is equal to