ABC26GN2986 · Ratio and Proportion
Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: · Marks: · Difficulty:
25\% of $A^{\prime}$ s income is equal to 35\% of $B^{\prime}$ 's income. The ratio of the incomes of $A$ and $B$ is
(a)5 : 7
(b)7 : 5
(c)13 : 15
(d)15 : 13
Answer
Explanation
25\% of $A=35 \%$ of $B \Rightarrow \frac{25}{100} A=\frac{35}{100} B \Rightarrow \frac{A}{4}=\frac{7 B}{20}$ $$\Rightarrow \frac{A}{B}=\frac{7}{20} \times 4=\frac{7}{5} \Rightarrow A: B=7: 5 .$$
Explanation as extracted from the printed page; notation may be imperfect.
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