Question

If the price of a pen is ₹10, how many pens can be bought with ₹230? ​

• A. 23
• B. 22
• C. 20
• D. 25

Answer 1

The correct option is A 23

$\text{Number of pens one can buy with}₹10=1$
$\text{Number of pens one can buy with}₹1=\frac{1}{10}$
$\text{Number of pens one can buy with}₹230=\frac{1}{10}\times 230=23$


$\text{Alternate:}$
$\text{Given that, price of one pen is ₹10}.\text{Let's assume one can buy}x\text{pens in}₹230.$
$\text{Using proportions, we have}$
$\Rightarrow \frac{10}{230}=\frac{1}{x}\Rightarrow x=23$

$\text{Hence, option a is correct.}$