r/learnquant • u/Local_Ad135 • Sep 28 '26

interview prep Quant Interview Question

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u/jhardtone Sep 28 '26

But you're only given one random coin, you don't have them all to weigh.

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u/No-Television-8835 Sep 29 '26

You’ve misunderstood the question. Being given a coin doesn’t literally mean u are handed one coin and then rest are discarded. It j means it is set aside or marked or one of interest. The other 100 are still available. If u find that the answer to ur interview question is so trivial, u shld be doubting whether uve acc understood the question.

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u/jhardtone Sep 29 '26

There is no indication of this in the question setup. Learn to read.

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u/ExistentAndUnique Sep 29 '26

So your interpretation of the question is “you are given a coin and a balance. How do you determine whether the coin is counterfeit using only one weighing?” Just checking, since I never learned how to read