Question

Sekar bought a computer $38,000$ and a printer $8,000$ . If the rate of sales tax is $7\mathrm{\%}$ for these items, find the price he has to pay to buy these two items.

Answer 1

Hint:
First of all, we will find out the total amount by adding the price of both the products and then we will find out the percentage sales tax of the total amount we had. And in this, we will be able to find the price he has to pay for buying these items.

Complete step by step solution:
First of all we will see the values given to us then we will find the price needed.
So the cost price of the computer is equal to $38,000$ , and
The cost price for the printer is equal to $8,000$ .
Therefore, the total amount will be calculated as- $38,000+8,000=46,000$
Now since the rate of sales tax is $7\mathrm{\%}$ given to us.
So the sales tax will be equal to
 $\Rightarrow {\displaystyle \frac{7}{100}}\times 46,000$
And on solving the above, we get
 $\Rightarrow 3,220$
Therefore, the total amount including the tax he has to pay for these two items will be equal to
 $\Rightarrow 46,000+3,220$
On adding, we get
 $\Rightarrow Rs.49,220$

Therefore $Rs.49,220$ , will be the price he has to pay to buy these two items.

Note:
For solving this type of question there is no more calculations or mathematical formula needed. Just a little bit of it is needed. The main thing in this type of problem is a statement. If we read the statement properly then we can solve it easily within a minute. In some cases, the fraction can easily be reduced to a denominator equal to $100$ (by multiplying or dividing numerator and denominator by the same number). The percentage is the numerator of the fraction with the denominator equal to $100$ .