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The GDP of a Country Has Decreased by 39% over the Past 5 Years and Is Now 378 Billion. What Was the GDP S Years Ago? 272 Billion None

Câu hỏi

The GDP of a country has decreased by 39% over the past 5 years and is now 378 billion. What was the GDP S years ago? 272 billion None of the other answers are correct 619 billion 620 billion

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Thủy chuyên gia · Hướng dẫn 6 năm

Trả lời

Let the GDP 5 years ago be . The GDP decreased by 39%, meaning the current GDP is 61% (100% - 39%) of the GDP 5 years ago. Therefore, we can set up the equation:0.61x = 378 billionSolving for x:x = 378 billion / 0.61 ≈ 620 billionTherefore, the GDP 5 years ago was approximately 620 billion.

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