Question

If the price of the eraser is reduced by 25%, a person can buy 2 more erasers for a rupee. How many erasers are available for a rupee ?

• A. $8$
• B. $6$
• C. $4$
• D. $2$

Answer 1

The correct option is B $6$

Let n erasers be available for a rupee.

Reduced price = $(\frac{75}{100}\times 1)=Rs.\frac{3}{4}$

$\frac{75}{100}$ will fetch n erasers, Rs. 1 will fetch $(n\times \frac{4}{3})$ erasers

Therefore,

$\frac{4n}{3}=n+2$

$n=6$