Question

∠A, ∠B, and∠C are three angles of ∆ABC.if ∠A-∠B=15°, ∠B-∠C =30°,then ∠ A, ∠B and ∠C are?

A 70°,55°,55°
B 80°,65°,35°
C 80°,65°,35°
D 80°,60°,40°
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