By selling cloth at $Rs.\, 9$ per meter, a shopkeeper loses $10 \% .$ Find the rate at which it should be sold so as to earn profit of $15 \%$ (in $RS.$)

In these questions, two equations mabered $I$ and $II$ are given. You have to solve both the equations and mark the appropriate option.

$I$. $x^{2}=16$

$II$.$2 y^{2}-17 y+36=0$

Kamya purchased an item for $Rs.\, 46,000$ and sold it at aloss of $12$ percent. With that amount she purchased another item which he sold at a gain of $12 \% .$ What was her overall gain/loss?

Arun buys one kilogram of apples for $Rs.\, 120$ and sells it to Swati gaining $25 \%$. Swati sells it to Divya who again sells it for $Rs.\, 198,$ making a profit of $10 \%$. What is the profit percentage made by Swati?

A man invests $Rs.\, 21,000$ in shares of a company. He sells one$-$third of total shares at a profit of $10 \% .$ But the remaining shares he has to sell at $5 \%$ loss. Find his overall profit or loss $\%.$

If the selling price of $50$ articles is equal to the cost price of $40$ articles, then the loss or gain percent is