Question

the angle of the quadrilateral are in the ratio of 3 is to 5 is to 9 is to 1 then the value of the two by three some of the smallest and second largest angle is

Answer 1

$3x + 5x + 9x + x = 360$
$18x = 360$
$x = 20$
then angles are 60,100,180,20
according to question
$(2 \div 3) \times (20 + 100)$
$(2 \div 3) \times 120$