A product when sold with $10 \%$ rebate on the listed price gave a profit of $Rs$ $70 .$ What was its cost price? (in $Rs$)
$200$
$350$
$700$
Cannot be determined
At what price should a shopkeeper mark a radio that costs him $Rs.\,1200$ in order that he may offer a discount of $20 \%$ on the marked price and still make a profit of $25 \% ? \quad$
On selling $17$ balls at $Rs.\, 720$, there is a loss equal to the cost price of 5 balls. The cost price of a ball is (in $Rs.$)
The price of an article is raised by $30 \%$ and then two successive discount of $10 \%$ each are allowed. Ultimately, the price of the article is
A man sells an article at $5 \%$ above its cost price. If he had bought it at $5 \%$ less than what he had paid for it and sold it at $Rs.\, 2$ less, he would have gained $10 \% .$ The cost price of the article is (in $Rs.$)
A shopkeeper loses $7 \%$ by selling a cricket ball for $Rs.\,31.$ For how much should he sell the ball so as to $\operatorname{gain} 5 \% ?$ (in $Rs.$)