On an order of $5$ dozen boxes of a consumer product, a retailer receives an extra dozen free. This is equivalent to allowing him a discount of........$\%$
$15$
$16 \frac{1}{6}$
$16 \frac{2}{3}$
$20$
A shopkeeper sells notebooks at the rate of $Rs.\, 45$ each and earns a commission of $4 \% .$ He also sells pencil box at the rate of $Rs.\, 80$ each and earns a commission of $20 \% .$ How much amount of commission will he earn in two weeks if he sells $10$ notebooks and $6$ pencil boxes a day? (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.
$I.$ $2 x^{2}+19 x+45=0$
$II.$ $2 y^{2}+11 y+12=0$
If the selling price is tripled and cost price doubled the profit would become $65 \% .$ What is the present profit (in $\%$)?
If the $CP$ of $50$ items is equal $SP$ of $40$ items then what is the profit or loss $\% ?$
An article which is marked at $Rs.\, 975$ is sold for $Rs.\, 897$. The $\%$ discount is?