Question

the Angeles of a Pentagon are in the ratio of 1:2:3:5:9. the smallest Angele is ? option A degree. B 45 degree. C 54 degree. D 27 degree.

Answer 1

Let, x,2x,3x,5x,9x be the angles of the pentagon.
Now, x+2x+3x+5x+9x= 540
$20x = 540 \\ x = 27$
So, smallest angle is 27.