RRB NTPC 28 April 2016 Paper

(1) Let Angles be 2x, 4x, 3x
∵ The sum of all the angles of triangle is 180°
⇒ 2x + 3x + 4x = 180°
⇒ 9x = 180° ⇒ x = 200°
Smallest angle = 2x = 40°
Largest angle = 4x = 80°
∴ Required Sum = 120°