SSC CGL 16 Aug 2015 Shift 1 Paper

Since π radian = 180°
∴ $\frac{22}{9}$ radian = $\frac{180}{\mathit{\pi }}\times \frac{22}{9}$
= $\frac{180}{22}\times \frac{22\times 7}{9}$ = 140° ... (i)
According to the question,
A + B =140°
and, A – B = 36° ....(ii)
On adding,
2A = 176° ⇒ A = $\frac{176}{2}$ = 88°
From equation (i),
∴ 88° + B = 140°
⇒ B = 140° – 88° = 52°