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PQRS is a cyclic quadrilateral. If angle...

PQRS is a cyclic quadrilateral. If angle P is three times the angle R and angle S is five times the angle Q , then the sum of angles Q and R is:
PQRS एक चक्रीय चतुर्भुज है | यदि कोण P कोण R का तिगुना है तथा कोण S कोण Q से पांच गुना है, तो कोण Q और R का योग ज्ञात करें |

A

`65^@`

B

`70^@`

C

`75^@`

D

`72^@`

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