The selling price of an article is $Rs.\, 816$ if the discount on it is $15 \%$. What would be the selling price of the article $($ in $Rs.\,)$ if the discount on it is $25 \%$?

The present worth of $Rs. 220.50$ due in $2$ years reckoning compound interest at $5 \%$ per annum is (in $Rs.$):

Two successive discounts of $a \%$ and $b \%$ on the marked price of an article are equivalent to a single discount of:

What will be the net discount (in $\%$) after giving three successive discounts of $10 \%$,$20 \%$,and $30 \%$?

The marked price of an article is $Rs. 650$ and a customer pays $Rs. 585$ for it. What is the discount percentage (in $\%$)?

$A$ has to pay $Rs. 220$ to $B$ after $1$ year. $B$ asks $A$ to pay $Rs. 110$ in cash and defers the payment of the remaining $Rs. 110$ for $2$ years. $A$ agrees to it. Counting the rate of interest at $10\%$ per annum in this new mode of payment,which of the following is true?