A wholesaler had $200$ dozens of mangoes. He sold some of these mangoes at $20 \%$ profit and the rest at $10 \%$ profit, so that he made $13 \%$ profit on selling all the mangoes. How many mangoes (in dozens) did he sells at $20 \%$ profit?
$140$
$60$
$80$
$120$
Find $SP$ when $CP = Rs.\; 80 .40, \operatorname{loss}=5 \% ?$
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 earns a profit of $12 \%$ on selling a book at $10 \%$ discount on the printed price. The ratio of the cost price and the printed price of the book is
A sells a bicycle to $B$ at a profit of $20 \%$ and $B$ sells it to $C$ at a profit of $25 \% .$ If $C$ pays $R s .\,1500,$ what did $A$ pay for it in $RS.$?
A tradesman gives $4 \%$ discount on the marked price and gives one article free for buying every $15$ articles and thus gains $35 \% .$ The marked price is appox. how much percent above the $CP$?