The cash difference between the selling prices of an article at a profit of $4 \%$ and $6 \%$ is $Rs.\, 3.$ The ratio of the two selling price is
$51: 52$
$52: 53$
$51: 53$
$52: 55$
Mohit lost $18 \%$ by selling a bicycle for $Rs.\, 1230$. What percent shall he gain or loss by selling it for $Rs.\, 1600 ?$
A shopkeeper sold Sarees at $Rs.$ $266$ each after giving $5\%$ discount on labelled price. Had he not given the discount, he would have earned a profit of $12 \%$ on the cost price. What was the cost price of each Saree? (in $Rs.$)
By Selling $80\, ball$ pens for $Rs.\, 140$, a retailer loses $30 \% .$ How many ball pens should he sell for $Rs.\,104$ so as to make a profit of $30 \% ?$
An article is sold at a certain fixed price. By selling it at $\frac{2}{3}$ of that price, one loses $10 \%$. The gain percent on selling it at the original price is
Ravipurchases $90$ pens and sells $40$ pens at a gain of $10 \%$ and $50$ pens at a gain of $20 \% .$ Had he sold all of them at a uniform profit of $15 \%$ he would have got $Rs.\, 40$ less. Find the cost price of each pen in $Rs.$