Arun purchased $30\, kg$ of wheat at the rate of $Rs.\,11.50$ per $kg$ and $20\, kg$ of wheat at the rate of $Rs.\,14.25$ per $kg$. He mixed the two and sold the mixture. Approximately at what price per $kg$ should he sell the mixture to make $30 \%$ profit? (in $Rs.$)
$14.80$
$15.40$
$15.60$
$16.30$
A trader marked the price of his commodity so as to include a profit of $25 \% .$ He allowed discount of $16 \%$ on the marked price. His actual profit was (in $\%$)
If the discount of $10 \%$ is given on the marked price of a radio, the gain is $20 \%$. If the discount is increased to $20 \%,$ the gain is......$\%$
A toothpaste labeled at $Rs.\, 80$ is sold for $Rs.\, 68$ The rate of discount is.......$\%$
The cost price of $12$ tables is equal to the selling price of $16$ tables. The loss percent is
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?