Question

Цена на яблоки сначала выросли на 60%, а затем понизилась на 20%. Сколько изначально стоили яблоки,если после понижения цен они стали стоять 128рублей

Answer 1

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Answer 2

Calculation of the Initial Price of Apples

To calculate the initial price of apples, we need to consider that the price first increased by 60% and then decreased by 20%. Let's assume the initial price of the apples is x rubles.

The price of the apples initially increased by 60%, which can be calculated as:

x + 60% of x = x + 0.6x = 1.6x

After the increase, the price of the apples decreased by 20%, which can be calculated as:

1.6x - 20% of 1.6x = 1.6x - 0.2(1.6x) = 1.6x - 0.32x = 1.28x

Given that the final price of the apples is 128 rubles, we can set up the equation:

1.28x = 128

To find the value of x, we divide both sides of the equation by 1.28:

x = 128 / 1.28 = 100

Therefore, the initial price of the apples was 100 rubles.