If the cost of $1$ banana is $Rs. 1.25$ and the cost of $1$ apple is $Rs. 1.75$,what will be the total cost of $2$ dozen bananas and $3$ dozen apples in $Rs.$?

If eggs are bought $12$ for $Rs. 10$ and sold at $10$ for $Rs. 12$,what is the gain or loss $\%$?

$A$ shopkeeper purchased $150$ identical pieces of furniture at the rate of $Rs. 250$ each. He spent an amount of $Rs. 2500$ on packing. He fixed the price of each furniture at $Rs. 320$. However,he decided to give a discount of $5 \%$ on the labeled price. What is the percent profit earned by him (in $\%$)?

Two toys are sold at $Rs. 504$ each. One toy brings the dealer a gain of $12 \%$ and the other a loss of $4 \%$. The gain or loss percent by selling both the toys is

In a certain store, the profit is $320 \%$ of the cost. If the cost increases by $25 \%$ but the selling price remains constant, approximately what percentage of the selling price is the profit?

The cost price of $6$ pens is equal to the selling price of $4$ pens. Find the profit percent. (in $\%$)