Amit purchased $13$ chair of $Rs.\, 115$ each and sold all at $Rs.\, 1220.$ Then find the profit or Loss on the transaction

A man buys $10$ articles for $Rs.\, 8$ and sells them at $Rs.\, 1.25$ per article. His gain percent is

A shopkeeper sells rice at $10 \%$ profit and uses weight $30 \%$ less than the actual measure. His gain percent is

Sanjay purchased a chair marked at $Rs.\, 800$ at $2$ successive discount of $10 \%$ and $15 \%$ respectively. He spent $Rs.\, 28$ on transportation and sold the chair for $Rs.$ $800 .$ How much is his gain percentage?

A men gains $20 \%$ by selling an article for a certain price. If he sells it at double the price, what will be the percentage of profit?

A fruit-seller buys some oranges and by selling $40 \%$ of them he fealises the cost price of all the oranges. As the oranges being to grow over-ripe, he reduces the price and sells $80 \%$ of the remaining oranges at half the previous rate of profit. The rest of the oranges being rotten are thrown away. The overall percentage of profit is