Question

Цену товара понизили на 20%, затем новую цену снизили ещё на 15% и, наконец, после перерасчёта произвели снижение ещё на 10%. На сколько % всего снизили первоначальную цену товара ?

Answer 1

20%+15%+10%=45% Вроде так

Answer 2

Calculation of the Total Percentage Decrease in the Initial Price

To calculate the total percentage decrease in the initial price of the product, we need to consider the successive discounts applied.

Let's break down the given information step by step:

1. The initial price of the product was decreased by 20%. 2. The new price, after the first discount, was further decreased by 15%. 3. Finally, after recalculating, the price was decreased by an additional 10%.

To find the total percentage decrease, we need to calculate the cumulative effect of these discounts.

Calculation:

1. The first discount of 20% reduces the price to 80% of the original price. 2. The second discount of 15% reduces the price to 85% of the discounted price from step 1. 3. The third discount of 10% reduces the price to 90% of the discounted price from step 2.

To find the total percentage decrease, we multiply the three discount percentages:

80% * 85% * 90% = 0.8 * 0.85 * 0.9 = 0.612

Therefore, the total percentage decrease in the initial price of the product is approximately 38.8%.

Please note that the calculation assumes that the discounts are applied successively, one after the other, and not simultaneously.