I need to build a raster based on 8 raster layers. 

Data in these 8 layers are divided into 3 classes, (1) K (values 1-1.5), (2) V (values 2-4) and (3) Z (values 5-12). The new raster is raster K, and for each cell I want to count how many times K occurs in the corresponding cell in the rasters below (later, I want to do the same for V and Z). The number of cells belong to this class should be the cell value in the new raster.

It is not my goal to add the values, just count how many cells belong to a certain class. 

I have been searching in the ArcToolbox, but I cannot seem to find a tool that does this. Can anyone help me? I am very unfamiliar with scripting. 

I am using Using ArcGIS 10.2.1