A trader buys $500\, kg$ of cotton for $Rs.\, 9,000.10 \%$ of this cotton is spoiled due to rain. At what rate ($Rs./ kg$) should he sell the rest to earn $10 \%$ profit?
$25$
$30$
$22$
$20$
A man purchased some eggs at $3$ for $Rs.\, 5$ and sold them at $5$ for $Rs.\, 12 .$ Thus, he gained $Rs.\, 143$ in all. The number of eggs he bought is
A toothpaste labeled at $Rs.\, 80$ is sold for $Rs.\, 68$ The rate of discount is.......$\%$
The cost price of $20$ articles is the same as the selling price of $x$ articles. If the profit is $25 \%$, then the value of $x$ is in $Rs.$
Find $SP$ when $C P=R s. \,56 .25$ and $\operatorname{Gain}=20 \% ?$
A shopkeeper professes to sell his goods at cost price but uses a $930$ $gm$ weight instead of $1$ kilogram weight. What will be the profit per cent of the shopkeeper?