RRB Group-D Model Paper 20 with answers for online practice

So, in the given figure:
Triangles starting from A are: ABC, ABD, ABE, ACD, ADE, ACE, ABJ, ABI, ABH, AJI, AJH, AIH, ADG.
Triangles starting from F are: FBD, FBE, FDE, FHG, FGE, FHE, FID.
Others are GDE, BCJ, BDI, BEH.
So, in total, we have 24 triangles in this diagram.