Suresh buys a camera for $Rs. 1800$ and sells it at $10 \%$ loss. Find out its selling price (in $Rs.$).

In these questions,two equations numbered $I$ and $II$ are given. You have to solve both the equations and mark the appropriate option.
$I$. $x^{2} = 16$
$II$. $2y^{2} - 17y + 36 = 0$

$A$ person sells taperecorders at $Rs. 1134$ each after giving a discount of $19 \%$ on the marked price. Had he not given the discount,he would have earned a profit of $40 \%$ on the cost price. The cost price of each taperecorder is (in $Rs.$)

The cost price of an article is $64 \%$ of the marked price. The gain percentage after allowing a discount of $12 \%$ on the marked price is........$\%$

The printed price of an article is $40 \%$ higher than its cost price. What is the discount rate so that the seller gains a $12 \%$ profit?

$A$ bought a certain quantity of oranges at a total cost of $₹ 1200$. He sold $1/3$ of those oranges at a $20\%$ loss. If $A$ earns an overall profit of $10\%$,at what percent profit did $A$ sell the rest of the oranges (in $\%$)?