The angles of a triangle are (x + 5)°, (2x - 3)° and (3x + 4)°. Then the value of x is?

A. 30

B. 31

C. 29

D. 28

Answer: Option C

Solution(By Examveda Team)

(x + 5)° + (2x - 3)° + (3x + 4)° = 180°
(Sum of all angles in triangle is 180°)
⇒ 6x + 6° = 180°
⇒ (x + 1) = 30°
⇒ x = 29°