In a △PQR, ∠Q =55° and ∠R = 35°. Find th...

In a △PQR, ∠Q =55° and ∠R = 35°. Find the ratio of angles subtended by side QR on circumcentre, incentre and orthocentre of the triangle.

A

3 : 2 : 1

B

3 : 2 : 5

C

3 : 2 : 4

D

4 : 3 : 2

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