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Estimation question

You work for 45 years, 220 days a year, 8 hours a day. How many years is that in one stretch?

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

Guess it yourself and earn points
Show the answer and the reasoning

The answer

9 years

Only 9 years. A whole working life is surprisingly short in one piece.

How to get there

  1. 45 × 220 × 8 = 79,200 hours
  2. 79,200 ÷ 8,760 = 9

Source: Calculation

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