A,B,C are three angles of a triangle. If A - B = 45° and B - C 15° then ∠A =?

83° 85° 95° 75°

95°

∠A + ∠B + ∠C  = \({180}^\circ\)   ..(1) ∠A  - ∠B = \({45}^\circ\)   ..(2) ∠A  - ∠B = \({15}^\circ\)   ..(3) (1) + (2) + (3) 2∠A + ∠B = \({240}^\circ\)   ..(4) Solving (4) and (2), ∠A  = \({95}^\circ\)