Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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Instead of dividing it into 3 groups...why not into 4 groups of 3 each

(1) 3

(2)3

(3)3

(4) 3

1) (1) vs (2) - if equal weight

(1) vs (3) - from this attemp you will find which has the odd one and you will find in which group that odd one is

Now you got one group having 3 balls..in which the odd ball is

now 1 ball vs 1 ball ...solution found in 3 attempts

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