Find $SP$ when $CP = Rs.\; 80 .40, \operatorname{loss}=5 \% ?$
$81$
$84.72$
$76.38$
$82.9$
Selling price of a chair is $Rs.$ $1386 .$ If loss percent is $23 \%$ then what is the cost price (in $Rs.$) of chair?
A man loses $20 \frac{1}{2} \%$ of his money and after spending $80 \%$ of the remainder, he is left with $Rs.\, 159 .$ How much did he have at first? (in $Rs.$)
The price of $12$ chair and $8$ table is Rs. $676 .$ What is the price of $21$ chair and $14$ table in $Rs.$?
A man bought $500$ metres of electronic wire at $50$ paise per metre. He sold $50 \%$ of it at a profit of $5 \%$ At what percent should he sell the remainder so as to gain $10 \%$ on the whole transaction?
A vendor buys bananas at $9$ for $Rs. 8$ and sells at 8 for $Rs. 9.$ What will be the profit or loss (in $\%$)?