The angles of a triangle are in the ratio of 2 : 3 : The largest angle in the triangle is:

A 40

B 75

C 70

D 80

Correct Answer: Option D

here, angles are 2x,3x,4x total angle of a triangle=180 we know, 2x+3x+4x=180 9x=180 x=180/9=20 so, largest angle= 4 X 20=80