A men bought apples at the rate of $8$ for $Rs.\, 34$ and sold them at the rate of $12$ for $Rs.\, 57 .$ How many apples should be sold to earn a net profit of $Rs.$ $45 ?$
$90$
$100$
$135$
$150$
If the cost price of $20$ articles is equal to the selling price of $15$ articles, find the profit percent?
A trader put the price of his goods $25 \%$ above cost price but allows $12.5 \%$ discount for cash payment. If he sells the goods for. $Rs.$ $875$ find the cost price of the goods? (in $Rs.$)
A person purchases $8$ pens for ₹ $10$ and sells $10$ pens for ₹ $8.$ How much profit or loss does he make in ?
A reduction of $10 \%$ in the price of rice enables to obtain $25\, kg$ more for $Rs.$ $2250 .$ Find the reduced price per $kg$ of the rice. (in $Rs.$)
A shopkeeper has to sell $24\, Kg$ of sugar. He sells a part of these at a gain of $20 \%$ and the rest at a loss of $5 \% .$ If on the whole he earns a profit of $10 \%$, the amount of Sugar sold at a loss is in $Rs.$?