Just came back from an interview this morning. Two questions to supposedly test raw intelligence, and here to post one of them and look for you guys' answer/approach/methodology:
1. How many ping-pong balls can be fed into a Boeing 747?
- Re: Quiz For Funposted on 03/02/2007
as many as it can take. :-) - Re: Quiz For Funposted on 03/02/2007
WOA wrote:
1. How many ping-pong balls can be fed into a Boeing 747?
WOA, a lot! - Re: Quiz For Funposted on 03/02/2007
WOA wrote:
1. How many ping-pong balls can be fed into a Boeing 747?
I am thinking about ten.
Beyond that you will cause enough commotion to be arrested by the Air Marshall and be charged with attempting terrorist attack.
- Re: Quiz For Funposted on 03/02/2007
ping-pong = i-o = i
there is one i inside Boeing 747.
so the answer is 1.
WOA wrote:
Just came back from an interview this morning. Two questions to supposedly test raw intelligence, and here to post one of them and look for you guys' answer/approach/methodology:
1. How many ping-pong balls can be fed into a Boeing 747? - posted on 03/05/2007
Come on guys, you all did an excellent job, but just not the type of job the interviewer was looking for.
Within 30 seconds of brainstorming, my mind just went short-circuited, while I concluded there is no sense to calculate the aircraft volume based on dimensional measurements. Say even if you get the right measures, you still don’t know how much space actually taken by the engine/machines/equipments/accessaries etc. Instead, I somehow came up with reasoning like this:
1. Assuming 300 passengers max capacity for 747
2. Assuming by Aviation Law, each aircraft has to provide at least 5 times air space for each passenger (there got to be a government regulation for that matter).
3. Boeing will always try to build just enough seats to meet the regulation standard.
4. Assuming (or by census data) an average American is 140 pound or 126 Kg
5. Thus each passanger occupies 126000 cubic cm
6. Thus the aircraft has 126000*300*5 = 189,000,000 cubic cm of volume space
7. Assuming 1 cm radius for each ping-pong ball, thus the space taken by each ping-pong ball is 4/3* 3.14 * 1**3 = 4.17
8. Therefore the number of ping-pong ball that can be taken = 189/4.17 ~= 45 million
Knowing the final number will always be nothing but bullshit, what they really care is a logical solution to an unconventional problem. I tried to leverage the enforcement of common by-laws, like in every public room you’ll have a plague for “maximum occupancy”, which is essentially tied to the volume capacity of that room. So I believe there is some standards the aircraft builder must adhere to.
Now comes the second brain teaser that actually was given to me as the first test.
1. There is a boulder on a boat in a small pond. What will happen to the water level if the boulder is dropped into the pond?
- Re: Quiz For Funposted on 03/05/2007
WOA wrote:
1. There is a boulder on a boat in a small pond. What will happen to the water level if the boulder is dropped into the pond?
Nothing happens as far as the water level is concerned. - Re: Quiz For Funposted on 03/05/2007
Devil is Right!阿基米德定律。
Assuming 1 cm radius for each ping-pong ball, thus the space taken by each ping-pong ball is 4/3* 3.14 * 1**3 = 4.17
乒乓球是球体,不能完全密堆,不像立方体。
这堆积的缝隙还是有些水份的。
要是我,也只能回答:
Millions, a jetplane of ping-pong.
- posted on 03/05/2007
It depends on the condition of the bottom of the pond. It it is rigid (which is unlikely), then the water level won't change; if it is mushy, then the boulder could sink itself into the mud, partially or completely. If the latter is the case, the water level will decrease by a delta. :-)
WOA wrote:
1. There is a boulder on a boat in a small pond. What will happen to the water level if the boulder is dropped into the pond?
- Re: Quiz For Funposted on 03/06/2007
Have u gotten new job? WOA?
I just gave a guy a pretty hard interview and told my boss he is not strong enough :)))
Haaaa - posted on 03/06/2007
Depends on what job (from what industry and what area in that industry, etc.) you try to get, the answer should be different. No?
We had lot of fun testing candidates for this kinds of questions before.
WOA wrote:
Just came back from an interview this morning. Two questions to supposedly test raw intelligence, and here to post one of them and look for you guys' answer/approach/methodology:
1. How many ping-pong balls can be fed into a Boeing 747? - Re: Quiz For Funposted on 03/06/2007
WOA wrote:
Just came back from an interview this morning. Two questions to supposedly test raw intelligence, and here to post one of them and look for you guys' answer/approach/methodology:
1. How many ping-pong balls can be fed into a Boeing 747?
well, the first idea came to my mind is that I can insert 1 ping-pong ball into the "O" of Boeing, maybe I'm crazy.
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