This needs answering please. First correct answer gets brainliest!

Answer:
0
Step-by-step explanation:
Because in the question it says only 4 sets whose mean,median and mode are all equal to 3.
There are 4 sets in the problem and everything will equal 3.
Therefore nothing will equal 5.
So, there are 0 sets where the mean,median and mode are equal to 5.