Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: · Marks: · Difficulty:
In a bank, monthly salary of clerks and officers are in the ratio of 3 : 5. Each clerk contributes 2\% and each officer contributes 3 \% of his salary to the Welfare Fund. If each officer's contribution is ₹ 210, what will be the clerk's salary?
(a)₹ 4000
(b)₹ 4200
(c)₹ 5200
(d)₹ 7000
(e)None of these
Answer
Answer (as printed): B
Explanation
Let the monthly salary of a clerk and an officer be ₹ $3 x$ and ₹ $5 x$ respectively. $$\begin{aligned} & \text { Then, } 3 \% \text { of } 5 x=210 \Rightarrow\left(\frac{3}{100} \times 5 x\right)=210 \\ & \Rightarrow x=\left(\frac{210 \times 100}{15}\right)=1400 . \\ & \therefore \text { Clerk's salary }=₹(3 \times 1400)=₹ 4200 . \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.