A manufacturer fixes his selling price at $33 \%$ over the cost of production. If cost of production goes up by $12 \%$ and manufacturer raises his selling price by $10 \%,$ his percentage profit is
$36 \frac{5}{9}$
$28 \frac{3}{8}$
$30 \frac{5}{8}$
$35$
Sudeep buys two $CDs$ for $Rs.\,380$ and sells one at a loss of $22 \%$ and the other at a gain of $12 \%$. If both the $CDs$ are sold at the same price, then the cost price of two $CDs$ is (in $Rs.$)
$60 \%$ of the cost price of an article is equal to $50 \%$ of its selling price. Then the percentage of profit or loss on the cost price is
A shopkeeper sold some article at the rate of $Rs.\, 35$ per article and earned profit of $40 \% .$ At what price each article should have been sold so that profit of $60 \%$ was earned. in$Rs.$
Amit buys $5$ watches for $Rs.\, 9450$ and later sells them for $Rs\,.9700$ How much profit does Amit make per watch in $Rs.$?
By selling a book for $Rs.$ $360,20 \%$ profit was earned. What is the $CP$ of the book in $Rs.$?