Quantitative Associate Interview Questions

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Classic marble weighing problem, you have 12 marbles, one of which is different weight from the other 11 (but unknown whether it's heavier or lighter), and a two-sided balance, find the odd marble using at most 3 weighings (each weighing only reveals whether the two sides are balanced or if one side is heavier).
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Quantitative Trader

Interviewed at Cutler Group LLC

3.6
Nov 9, 2017

Classic marble weighing problem, you have 12 marbles, one of which is different weight from the other 11 (but unknown whether it's heavier or lighter), and a two-sided balance, find the odd marble using at most 3 weighings (each weighing only reveals whether the two sides are balanced or if one side is heavier).

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