Question

The ratio between the three angles of a quadrilateral is 1:4:5 respectively.The value of the fourth angle of the quadrilateral is 60.What is the difference between the value of the largest and the smallest angles of the quadrilateral

Answer 1

Sum of ratio = 1+4+5 = 10

Sum of other 3 angles = 360-60

= 300

1st angle = (1/10)×300 = 30

2nd angle = (4/10)×300 = 120

3rd angle = (5/10)×300 = 150

Required difference = 150 - 30

= 120