Question

The marked price of an electric iron is Rs. $690$. The shopkeeper allows a discount of $10\%$ and gains $8\%$. If no discount is allowed, his gain per cent would be

• A. $20\%$
• B. $24\%$
• C. $25\%$
• D. $28\%$

Answer 1

The correct option is A $20\%$

M.P. of the iron $=$ Rs. $690$, Discount $=10\%$
$\therefore$ S.P. $=690-10\%$ of Rs. $690$

$690-\frac{10}{100}\times 690=$ Rs. $621$
Gain $=$ $8\%$
$\therefore$ C.P. $=$ Rs. $\frac{621\times 100}{108}=$ Rs. $575$
If no discount is allowed, S.P. $=$ Rs. $690$

Gain $=690-575=$ Rs. $115$
$\therefore$ Gain $\%$ $=\frac{115}{575}\times 100=20\%$