ABC26GN3026 · Ratio and Proportion

Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: · Marks: · Difficulty:

If $\frac{a+b}{c}=\frac{b+c}{a}=\frac{c+a}{b}=k$, then $k$ is equal to
(a)0
(b)1
(c)2
(d)$a+b+c$
Answer
Answer (as printed): C
Explanation
$a+b=c k, b+c=a k, c+a=b k$. Adding, we get : $2(a+b+c)=a k+b k+c k$ $$=k(a+b+c) \text { or } k=2 .$$

Explanation as extracted from the printed page; notation may be imperfect.

Open in whiteboard · Browse this chapter in the app