ABC26GN3110 · Ratio and Proportion

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

Salaries of $A$ and $B$ are in the ratio of $9: 4$ respectively. When $A$ 's salary is increased by 15\%, it becomes ₹ 5175. What is B's salary?
(a)₹ 2000
(b)₹ 2500
(c)₹ 4000
(d)₹ 4500
(e)None of these
Answer
Answer (as printed): A
Explanation
Let the salaries of $A$ and $B$ be ₹ $9 x$ and ₹ $4 x$ respectively. $$\begin{aligned} & \text { Then, } 115 \% \text { of } 9 x=5175 \Rightarrow \frac{115}{100} \times 9 x=5175 \\ & \Rightarrow x=\left(\frac{5175 \times 100}{115 \times 9}\right)=500 . \\ & \therefore \text { B's salary }=₹(4 \times 500)=₹ 2000 . \end{aligned}$$

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

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