Ratio And Proportion Ques 7

Question-

The ratio between the three angles of a quadrilateral is 13:9:5 respectively. The value of the fourth angle of the quadrilateral is $36^{\circ}$. What is the difference between the largest and the second smallest angles of the quadrilateral?

(1) $104^{\circ}$

(2) $108^{\circ}$

(3) $72^{\circ}$

(4) $96^{\circ}$

(5) None of these

(Allahabad Bank PO Exam. 17.04.2011)

Show Answer

Correct Answer: (4)

Solution: (4)

Let the three angles of quadrilateral be $13 x^{\circ}, 9 x^{\circ}$ and $5 x^{\circ}$ respectively.

$\therefore 13 x+9 x+5 x=360-36$

$\Rightarrow 27 x=324 $

$\Rightarrow x=\frac{324}{27}=12$

$\therefore$ Required difference $=13 x-5 x=8 x=8 \times 12=96^{\circ}$