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Schlumberger Field Specialist Interview Question

I interviewed in Williston, ND and was asked:
"They give you 8 object of equal size, but one is a different weight. You have to determine which on in two moves."
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Part of a Field Specialist Interview Review - one of 903 Schlumberger Interview Reviews

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Divide them into groups of 3,3 and 2.
Weigh 3 against 3 - It one side is heavier - select that group - again from this, take two and weigh - if one of the two is heavier, u know it otherwise the remaining one in that group.

If 3 against 3 are same, weigh the remaining two and one is heavier.
- Anonymous on Sep 21, 2013

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