Question

The ratio of the incomes of Rahul and Keshav is $5:4$. If Rahul's income is $₹18000$, what is the income of Keshav?

Answer 1

Finding the income of Keshav :

Let the incomes of Rahul and Keshav be $5x$ and $4x$.

Now, equating the income of Rahul to find the value of $x$.

$\begin{array}{rcl}5x& =& 18000\\ x& =& \frac{18000}{5}\\ x& =& ₹3600\end{array}$

Now,

Income of Keshav$=4\times ₹3600=₹14400$.

Hence, Keshav's income is $₹14400$.