ABC26GN2966 · Ratio and Proportion

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

Which of the following is the ratio between a number and the number obtained by adding one-fifth of that number to it?

(a)4 : 5

(b)5 : 4

(c)5 : 6

(d)6 : 5

Answer

Answer (as printed): C

Explanation

Let the number be $x$. Then, required ratio $=x:\left(x+\frac{x}{5}\right)=x: \frac{6 x}{5}=1: \frac{6}{5}=5: 6$.

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