Multiple choice general knowledge math & puzzles

what fraction is used to represent pi?

  1. 22/7

  2. 256/81

  3. 314/1

  4. 1.56/2
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A Correct answer
Explanation

The fraction 22/7 is the most commonly used approximation for pi, dating back to Archimedes. While not exact (pi is irrational), 22/7 ≈ 3.1429 is close to pi's true value of 3.14159... The other options (256/81 ≈ 3.160, 314/1 = 314, 1.56/2 = 0.78) are either poor approximations or completely incorrect. 22/7 is taught in schools as pi's practical approximation.

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