Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: · Marks: · Difficulty:
Between two consecutive years my incomes are in the ratio of 2 : 3 and expenses in the ratio 5 : 9. If my income in the second year is ₹ 45000 and my expenses in the first year is ₹ 25000 my total savings for the two years is
(a)Nil
(b)₹ 5000
(c)₹ 10000
(d)₹ 15000
Answer
Answer (as printed): B
Explanation
Let income in the first year be ₹ $x$ and expenses in the second year be ₹ $y$. $$\begin{aligned} & \text { Then, } \frac{x}{45000}=\frac{2}{3} \text { and } \frac{25000}{y}=\frac{5}{9} \\ & \Rightarrow x=\frac{2 \times 45000}{3}=30000 \text { and } y=\frac{25000 \times 9}{5}=45000 . \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.