Sebuah handphone model terbaru mengalami penurunan harga secara berturut-turut 30% dan 20% Berapa penurunan total harga handphone-model terbaru tersebut? Select one: 52% 50% 48% 56% 46%

Question

Pertanyaan

Sebuah handphone model terbaru mengalami penurunan harga secara berturut-turut 30% dan 20% Berapa penurunan total harga handphone-model terbaru tersebut? Select one: 52% 50% 48% 56% 46%

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Answer 1

Let the original price of the phone be P.

After the first price decrease of 30%, the price becomes:

P - 0.30P = 0.70P

After the second price decrease of 20%, the price becomes:

0.70P - 0.20(0.70P) = 0.70P - 0.14P = 0.56P

The total decrease in price is P - 0.56P = 0.44P

Therefore, the total percentage decrease is (0.44P / P) * 100% = 44%

However, 44% is not one of the options. Let's re-examine the calculation. The mistake is in assuming the second discount is applied to the original price. It's applied to the *already reduced* price.

The problem states successive discounts of 30% and 20%. Let's assume the original price is 100.

* First discount: 100 - (30% of 100) = 100 - 30 = 70
* Second discount: 70 - (20% of 70) = 70 - 14 = 56

The final price is 56. The total decrease is 100 - 56 = 44. Therefore, the total percentage decrease is 44%.

Since 44% is not among the choices, there might be a slight error in the question or the provided options. The correct answer based on the given information is a 44% decrease. None of the multiple choice options are correct.

Pertanyaan

Sebuah handphone model terbaru mengalami penurunan harga secara berturut-turut 30% dan 20% Berapa penurunan total harga handphone-model terbaru tersebut? Select one: 52% 50% 48% 56% 46%

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