Schlumberger Interview Question: If you have a balance scale o... | Glassdoor

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Interview Question

Oil Field Service Interview Tulsa, OK

If you have a balance scale on a crane with 4 crates and

  you can only weigh two at a time, no more than three times, how do you figure out which crate has the least amount of weight?

Interview Answer

1 Answer


boxes: A B C D

1. Weigh a & b find the lightest
2. Weigh c & d find the lightest
3. Weigh the 2 lightest and pick the lighter box.

this is assuming that all the boxes are different weights..

Doyle on Sep 4, 2012

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