RRB RPF RPSF SI and CONS Model Papers 10 with solutions

(1) First of all label the given diagram : The triangles are :
ΔPED; ΔPEA; ΔAEQ; ΔQEB;
ΔBER; ΔCER; ΔCES; ΔDES;
ΔPES; ΔSER; ΔREQ; ΔPEQ;
ΔPSR; ΔQRS; ΔPQR; ΔPQS
Thus, there are 16 triangles.