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Estimation question

You earn 15 euros an hour, 40 hours a week. How many years until you have 1 billion?

How close can you get? Make your own guess and earn points before you look at the answer.

Guess it yourself and earn points
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The answer

32,051 years

More than 32,000 years. You would have had to start in the Ice Age.

How to get there

  1. 15 × 40 × 52 = 31,200 euros per year
  2. 1 billion ÷ 31,200 = 32,051

Source: Calculation

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