A shopkeeper wanted to sell a product worth ₹3,000. He offered two options: three successive discounts of 10% each, or a single flat discount of 30%. If a buyer chooses the first option, how much extra or less does he pay compared to the second option?

What single discount is equivalent to three successive discounts of 9%, 12%, and 15%? (rounded off to two decimal places)

At \( 12\% \) discount, the selling price of a washing machine is \( ext{&10;836;}15,000 \). What will be the selling price if \( 25\% \) discount is given in place of \( 12\% \) (correct to two decimal places)?