Akila scored $80\%$ of marks in an examination. If her score was $576$ marks, then find the maximum marks of the examination.

Ranjith bought a washing machine for $₹16150$ and paid $₹1350$ for its transportation. Then, he sold it for $₹19250$. Find his gain or loss percentage.

If the selling price of an LED TV is equal to $\frac{5}{4}$ of its cost price, then find the gain/profit percentage.

The cost price of $16$ boxes of strawberries is equal to the selling price of $20$ boxes of strawberries. Find the gain or loss percentage.

By selling a bicycle for $₹ 4275$, a shopkeeper loses $5\%$. For how much should he sell it to have a profit of $5\%$ ?

The price of a raincoat was slashed from $₹1060$ to $₹901$ by a shopkeeper in the rainy season to boost the sales. Find the rate of discount given by him.