Amit buys $5$ watches for $Rs.\, 9450$ and later sells them for $Rs\,.9700$ How much profit does Amit make per watch in $Rs.$?

If Aditya sells an article to Nutan at $10 \%$ gain, while Nutan sells it to Manish at $20 \%$ gain at $Rs.\, 1914$ then what is the Cost Price in $Rs.$?

A retailer offers the following discount schemes for buyers on an article

$I.$ Two successive discounts of $10 \%$

$II.$ A discount of $12 \%$ followed by a discount of $8 \%$

$III.$ Successive discounts of $15 \%$ and $5 \%$

$IV.$ A discount of $20 \%$

The selling price will be minimum under the scheme

$'A'$ bought a certain quantity of oranges at total cost of $Rs.\, 1200 /-$ He sold $1 / 3^{\text {rd }}$ of those oranges at $20 \%$ loss. If $A$ earns an overall profit of $10 \%,$ at what percent profit did $A$ sell the rest of the oranges?

If the cost price of $21$ watches is equal to the selling price of $18$ pieces, then what would be the gain percent in this transaction?

List price of a book is $Rs.\,100.$ A dealer sells three such books for $Rs.\, 274.50$ after allowing discount at a certain rate. Find the rate of discount in $\%$