On a $Rs.\,10,000$ payment order, a person has a choice between three successive discounts of $10 \%, 10 \%$ and $30 \%$ and three successive discounts of $40 \%, 5 \%$ and $5 \% .$ By choosing the better offer, he can save in $Rs.$?
$200$
$225$
$400$
$255$
Charging $30 \%$ above its production cost a radio maker puts a label of $Rs.\, 286$ on a ratio as its price. But at the time of selling it, he allows $10 \%$ discount on the labeled price. What will his gain be? (in $Rs.$)
The cost price of $40$ articles is the same as the selling price of $25$ articles. Find the gain percent.
Two third of consignment was sold at a profit of $5 \%$ and the remainder at a loss of $2 \%$. If the total profit was $Rs.\, 400$ , the value of the consignment was in $Rs.$?
If selling price is doubled, the profit triples. Find the profit percent
Some articles were bought at $6$ articles for $Rs.\,5$ and sold at $5$ articles for $Rs.$ $6 .$ Gain percent is