Question

$15\%$ of the cost of a computer was tax. If the tax was $₹1800$, what was the cost of the computer ?

Answer 1

Finding the cost of the computer

Percentage of computer tax $=15\%$

Cost of computer tax $=₹1800$

Let, the Cost of computer be $\mathcal{x}$.

According to the question

$\begin{array}{rcl}15\%of\mathcal{x}& =& 1800\\ \frac{15}{100}\times \mathcal{x}& =& 1800\\ \mathcal{x}& =& \frac{1800\times 100}{15}\\ \mathcal{x}& =& 12000\end{array}$

Therefore, the cost of the computer is$₹12000$.