Consider the following situation:
[![enter image description here](https://i.stack.imgur.com/wZu09.png)](https://i.stack.imgur.com/wZu09.png)

The following ball is released and just after that reading of weighing machine is noted.
Now, it is given that Mass of container is $M$ and mass of liquid is $m$ and mass of ball is $m\_0$.
Now, My professor said that if the density of ball is not equal to the density of liquid, then Reading of machine will be more than $(M + m + m\_0)g$.  

But according to me it will possible only if density of ball < density of water since reading of machine will be (M + m + density of water \* Volume of ball)g

Am I somewhere wrong?