Final answer:
If the shopkeeper sells the doll with a 15% discount, he gets less than Rs 8. The exact amount isn't provided but is determined by subtracting the discount from the marked price. For discounts and sales tax, percentages are converted to amounts deducted or added to the price.
Step-by-step explanation:
If a shopkeeper sells a doll with a 10% discount, he gets Rs 8. If he sells it with a 15% discount, he will get less than Rs 8 because the discount is larger by 5%. Without the actual marked price, the specific amount cannot be calculated, but it will certainly be lower than Rs 8. When calculating discounts, you subtract the discount amount from the original price. For example, if you have a $150.00 item with a 10% sales tax, you would add $15.00 to the total, because $150.00 x 0.10 equals $15.00.
Further, when dealing with percentage changes, like a pay raise from $10 per hour to $12 per hour, the increase is calculated as $2/$10 = 0.20 or 20%. Similarly, in retail, a discount results in a decrease in the total amount received by the seller. The higher the discount percentage, the less revenue for the seller.