i think google asks the manhole cover question…
ugradCFA Wrote: ------------------------------------------------------- > eureka Wrote: > -------------------------------------------------- > ----- > > Circular covers cannot fall through. > > > I don’t believe that is the answer - manhole > covers are round because no matter the shape > (square, triangle, shaped like a duck) of the > drill used, the hole will always end up circular. I believe eureka is correct. A round cover with a lip cannot fall into the hole and injure a worker below, no matter how you manipulate it (short of breaking it). Almost any “angular” cover can easily fall through if rotated a bit. To your point, circular holes are frequently “squared off” to some degree or other and even a round hole can be covered by a square cover if you want.
yes, but does google ask the manhole question?
monger187 Wrote: ------------------------------------------------------- > yes, but does google ask the manhole question? call it a sixth sense, but i think niraj_a might have a vague idea about this
It’s been attributed to MSFT too so maybe not.
Supreme111 Wrote: ------------------------------------------------------- > lol @ easy questions what is the square root of .1? what would you say if someone asked you that in an interview?
philip.platt Wrote: ------------------------------------------------------- > Supreme111 Wrote: > -------------------------------------------------- > ----- > > lol @ easy questions > > > what is the square root of .1? > > > what would you say if someone asked you that in an > interview? well, the sqrt of 9 is 3 or .09 is .3 so you can assume the sqrt of .1 would be a little more than .3
philip.platt Wrote: ------------------------------------------------------- > Supreme111 Wrote: > -------------------------------------------------- > ----- > > lol @ easy questions > > > what is the square root of .1? > > > what would you say if someone asked you that in an > interview? sqrt(0.1) = sqrt(1/10) = 1 / sqrt(10) ~= 1 / 3.15 ~= 0.315
I was asked once how many gas stations there are in the US. The interviewers had the answer on hand, and my estimate was actually very close. I made it to the next round, but I still didn’t get the job.
justin88 Wrote: ------------------------------------------------------- > philip.platt Wrote: > -------------------------------------------------- > ----- > > Supreme111 Wrote: > > > -------------------------------------------------- > > > ----- > > > lol @ easy questions > > > > > > what is the square root of .1? > > > > > > what would you say if someone asked you that in > an > > interview? > > sqrt(0.1) = sqrt(1/10) = 1 / sqrt(10) ~= 1 / 3.15 > ~= 0.315 nicely done - right these questions are important because they enable the interviewer to analyze if you quickly look at and provide solutions to problems with or without thinking about them
daviskr Wrote: ------------------------------------------------------- > philip.platt Wrote: > -------------------------------------------------- > ----- > > Supreme111 Wrote: > > > -------------------------------------------------- > > > ----- > > > lol @ easy questions > > > > > > what is the square root of .1? > > > > > > what would you say if someone asked you that in > an > > interview? > > well, the sqrt of 9 is 3 or .09 is .3 so you can > assume the sqrt of .1 would be a little more than > .3 
yeah
monger187 Wrote: ------------------------------------------------------- > I was asked once how many gas stations there are > in the US. The interviewers had the answer on > hand, and my estimate was actually very close. I > made it to the next round, but I still didn’t get > the job. i’ve seen questions like this before. another one I’ve heard like this is “how many square feet of astro turf are there in the U.S?” They just want to hear your thought process and see if you can logically get to a conclusion.
Yeah. I made an estimate of the number of gas sations in the town I lived in, which had a population of something like 50,000, then extrapolated that onto the full 300M population of the US. The correct answer: a bajillion.
philip.platt Wrote: ------------------------------------------------------- > justin88 Wrote: > -------------------------------------------------- > ----- > > philip.platt Wrote: > > > -------------------------------------------------- > > > ----- > > > Supreme111 Wrote: > > > > > > -------------------------------------------------- > > > > > > ----- > > > > lol @ easy questions > > > > > > > > > what is the square root of .1? > > > > > > > > > what would you say if someone asked you that > in > > an > > > interview? > > > > sqrt(0.1) = sqrt(1/10) = 1 / sqrt(10) ~= 1 / > 3.15 > > ~= 0.315 > > > nicely done - right > > these questions are important because they enable > the interviewer to analyze if you quickly look at > and provide solutions to problems with or without > thinking about them yeah, it is nice trick to treat all decimal as fractional. I need to remember this one
philip.platt Wrote: ------------------------------------------------------- > justin88 Wrote: > -------------------------------------------------- > ----- > > philip.platt Wrote: > > > -------------------------------------------------- > > > ----- > > > Supreme111 Wrote: > > > > > > -------------------------------------------------- > > > > > > ----- > > > > lol @ easy questions > > > > > > > > > what is the square root of .1? > > > > > > > > > what would you say if someone asked you that > in > > an > > > interview? > > > > sqrt(0.1) = sqrt(1/10) = 1 / sqrt(10) ~= 1 / > 3.15 > > ~= 0.315 > > > nicely done - right > > these questions are important because they enable > the interviewer to analyze if you quickly look at > and provide solutions to problems with or without > thinking about them yep. for this problem i would consider the real-valued function f(x)=Sqrt(x), and expand its Taylor series around x=3. I will truncate the expansion after the third term in order to capture the linear approximation along with the convexity adjustment, and then approximate the error bound for the truncated series by considering the Cauchy estimate for the Lagrange remainder. this will demonstrate to the interviewer my ability to think outside the box and apply advanced concepts for solving elementary problems otherwise easily handled by “common sense” methods such punching a few buttons of a readily available calculator. extremely useful skill in finance
Mobius Striptease Wrote: ------------------------------------------------------- > philip.platt Wrote: > -------------------------------------------------- > ----- > > justin88 Wrote: > > > -------------------------------------------------- > > > ----- > > > philip.platt Wrote: > > > > > > -------------------------------------------------- > > > > > > ----- > > > > Supreme111 Wrote: > > > > > > > > > > -------------------------------------------------- > > > > > > > > > > ----- > > > > > lol @ easy questions > > > > > > > > > > > > what is the square root of .1? > > > > > > > > > > > > what would you say if someone asked you > that > > in > > > an > > > > interview? > > > > > > sqrt(0.1) = sqrt(1/10) = 1 / sqrt(10) ~= 1 / > > 3.15 > > > ~= 0.315 > > > > > > nicely done - right > > > > these questions are important because they > enable > > the interviewer to analyze if you quickly look > at > > and provide solutions to problems with or > without > > thinking about them > > yep. for this problem i would consider the > real-valued function f(x)=Sqrt(x), and expand its > Taylor series around x=3. I will truncate the > expansion after the third term in order to capture > the linear approximation along with the convexity > adjustment, and then approximate the error bound > for the truncated series by considering the Cauchy > estimate for the Lagrange remainder. this will > demonstrate to the interviewer my ability to think > outside the box and apply advanced concepts for > solving elementary problems otherwise easily > handled by “common sense” methods such punching a > few buttons of a readily available calculator. > extremely useful skill in finance +1
The real reason manhole covers are round is because that is the shape that requires the least amount of material to manufacture.
More importantly, what will cover be at the Manhole this weekend?
^^ The manufacturer would have way too much scrap in that case, assuming they aren’t pouring their own steel.
NakedPuts Wrote: ------------------------------------------------------- > More importantly, what will cover be at the > Manhole this weekend? Ewwwww, from Chi-town I presume?