One of the angles of a quadrilateral is thrice the smaller angle of a parallelogram. The respective ratio between
the adjacent angles of the parallelogram is 4:5. Remaining three angles of the quadrilateral are in ratio 4:11:9
respectively. What is the sum of the largest and the smallest angles of the quadrilateral?
(1) 255
2
260
3
265
4
270
(5) None of these

• 4x+5X=180
  x=20
  
  one angle of quadrilateral=12*20=240
  
  other three are=9y+11y+4y=12o
  y=5
  so sum=240+20
  
  240
• 8 years agoHelpfull: Yes(2) No(1)