A store initially sold a product for Rs.1200, but due to a discount, the selling price was reduced to Rs.960. What was the percentage discount offered to the product?

What is the difference between 80% of 30 and 4/5 of 25?

5% of p is 10, and 10% of q is 5. r is equal to q/p. What is the value of r?

A dyes is made by mixing red and yellow colors in the ratio of 2 ∶ 5. If the amount of red color in the dye is increased by 25%, what will be the percentage of yellow color in the new dye to be made?

The number of apples, oranges and mangoes is in the ratio of 5 ∶ 7 ∶ 8 respectively. The fruit seller increased the number of fruits by 40%, 50% and 75% respectively. What will be the ratio of fruits now?