Question

Ціну деякого товару спочатку знизили на 10% ,а потім підвищили на 30%.Як і на скільки змінилась початкова ціна товару?

Answer 1

100-10=90% складає ціна після знижки
90+30=120% складає ціна після підвищення
Товар подорожчав на 120-100=20%
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Answer 2

Change in the Initial Price of the Product

The initial price of the product decreased by 10% and then increased by 30%. We can calculate the change in the initial price using the following steps:

1. Let's assume the initial price of the product is represented by P.

2. After the initial 10% decrease, the price becomes 0.9P (90% of the original price).

3. Then, after the 30% increase, the price becomes 1.3(0.9P).

Calculation of the Change in the Initial Price

To find the change in the initial price, we can calculate the final price and then compare it to the initial price.

The final price after the decrease and increase is: 1.3(0.9P) = 1.17P

So, the final price is 117% of the initial price.

Change in the Initial Price

The initial price of the product increased by 17%.

This means that the initial price of the product increased by 17% after the 10% decrease followed by a 30% increase