SSC CPO 1 July 2017 Shift 1 Paper

Question : 136 of 200

Marks: +1, -0

In ΔPQR, ∠P : ∠Q : ∠R = 2 : 2 : 5. A line parallel to QR is drawn which touches PQ and PR at A and B respectively. What is the value of ∠PBA - ∠PAB?