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2,216 technical service interview questions shared by candidates

You have 8 balls with one heavier than the rest, what's the minimum number of weighs needed to determine the heaver ball on a scale? Split up the balls into groups of 3 as this group you can determine the heavier ball with one weighing. So if you start with the group of 3 and 3 then you simply need 2 weighing at most, else it's also 2 if you have to check the remaining 2 balls as the scale would be even with 3 balls.
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Technical Services Engineer

Interviewed at Laserfiche

2.9★
Jan 11, 2017

You have 8 balls with one heavier than the rest, what's the minimum number of weighs needed to determine the heaver ball on a scale? Split up the balls into groups of 3 as this group you can determine the heavier ball with one weighing. So if you start with the group of 3 and 3 then you simply need 2 weighing at most, else it's also 2 if you have to check the remaining 2 balls as the scale would be even with 3 balls.

you have 25 horses, and you want to pick the fastest 3 horses out of those 25. In each race, only 5 horses can run at the same time because there are only 5 tracks. What is the minimum number of races required to find the 3 fastest horses without using a stopwatch?
avatar

Technical Services Engineer

Interviewed at Laserfiche

2.9★
Sep 12, 2016

you have 25 horses, and you want to pick the fastest 3 horses out of those 25. In each race, only 5 horses can run at the same time because there are only 5 tracks. What is the minimum number of races required to find the 3 fastest horses without using a stopwatch?

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