 Hello and welcome to the session. In this session, we will discuss the following question, and the question says, the marked price of an air conditioner is $640, a buyer gives a return discount of 16%, an off-season discount of 8%, and a cash discount of 2% on it. How much did he have to pay for it? Before we start solving the question, let us first recall the formula for selling price when the marked price and discount are given to us. Selling price is equal to marked price minus d% of marked price where discount is d%. So, this is the key idea for this question, and using this key idea, we will solve the question. Let's start the solution now. The marked price of the air conditioner is $640, so, marked price is equal to $640. Also, we are given that a buyer gets a return discount of 16%, so, return discount is equal to 15% of the marked price, that is $640. This is equal to $1500 into $640, which is equal to $96. So, we have the marked price and return discount. Therefore, price after 15% discount is equal to marked price, that is $630 minus return discount, that is $96. This is equal to $534. Also, it is given in the question that an off-season discount of 8% is given. So, off-season discount is equal to 8% of price after 15% discount, that is $534. This is equal to $8100 into $544, which is equal to $33.52. So, price after 8% discount is equal to price after 15% discount, that is $534 minus off-season discount, which is $33.52. This is equal to $500.48. Next, we are given that there is a cash discount of 2%. So, cash discount is equal to 2% of price after 8% discount, that is $500.48. This is equal to $2100 into $500.48. This is approximately equal to $10. So, the price after 2% discount is equal to price after 8% discount, that is $500.48 minus cash discount, which is $10. This is equal to $490.48. So, this is the price after 3 successive discounts. Hence, the buyer has to pay $490.48. This is the final answer. With this, we end our session. Hope you enjoyed the session.