Angles forming linear pair

The sum of interior angles of a triangle is $180$ . So we add the three angles,

$2x+3x+4x=180$

$9x=180$

$x=20$

Now compute for the three angles. They are $2x=2(20)=40^\circ, 3x=3(20)=60^\circ$ and $4x=4(20)=80^\circ$ . Then arrange in descending order (from highest to lowest). So our answer must be $80,60,40$ .

Haha lol one of the options has the correct values but in the wrong order good way to trick people!

2x + 3x + 4x=180

9x=180

x=180/9

x=20

2x=2*20=40

3x=3*20=60

4x=4*20=80

answer is in descending order therfore answer is 80,60,40