Step 1: Convert credit price to cash equivalent.
Present value of ₹ 2200 due in $1$ year at $10\%$ p.a.:
$\text{PV}=\dfrac{2200}{1+0.10}=₹ 2000$.
Step 2: Compare with cost.
Effective SP (cash equivalent) $=₹ 2000$, Cost $=₹ 1950$.
Gain $=₹(2000-1950)=₹ 50$.
$\Rightarrow\ \boxed{\text{Gains ₹ 50}}.$
A company has $50{,}000$ preferred shares with dividend $20\%$ and $20{,}000$ common shares; par value of each share is ₹ 10. The total profit is $₹ 1{,}80{,}000$, of which $₹ 30{,}000$ is kept in reserve and the rest distributed to shareholders. Find the dividend percent paid to common shareholders.
A man buys apples at a certain price per dozen and sells them at eight times that price per hundred. What is his gain or loss percent?
By selling $12$ notebooks, the seller earns a profit equal to the \(\textit{selling price}\) of $2$ notebooks. What is his percentage profit?