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• Well, I hope that's accurate.

• E think I should maybe ask somebody, um, wish me luck.

• So how maney golf balls can you fit in a Boeing 7 47?

• I I have no idea how many tennis balls I'll go.

• Wow.

• Wow.

• My first step is toe dimension the size of a golf ball, which I actually don't know.

• Ah, golf ball is I don't know.

• I have never played golf before.

• If you play tennis a little bit smaller than a tennis ball, I'm gonna predict that a golf ball is four inches by four inches in diameter and a head rust is probably don't know.

• Here's my head.

• So let's say it's that big and maybe that thick.

• And now I'm just trying to break down the seat to figure out how many golf balls are in it.

• So in this head rest, there were about 15.

• I'm going to say that there are three rows of three headrests that can fit in the back portion of it, and then I'm gonna say there's two rows of three for the bottom part.

• Then that gives us 369 on the top six on the bottom 15 times.

• 15 golf balls in each head rest.

• There are 15 head rests in the seat.

• That gives us 225 golf balls per seat.

• I'm now attempting to draw plane.

• I'm such a architect.

• Like I gotta get it right.

• Oh, gosh.

• I'm sorry.

• That looks horrible.

• Can I just line up my wings?

• This is very bad.

• So you have the cabin, which is like X one X two is where the passenger goes with all the seats, those air, what the seats are, and then x three, which is like the undercarriage which might be down here.

• And you know, just where all the luggage goes.

• When I first think about the plane in plan, what is a variable?

• That I can replicate it numerous times and that's the seat in a 7 47.

• Primarily have two seats here, two seats here on I'll and I'll and three seats in the middle.

• So that's seven seats across in each rope.

• I will assume a Boeing 7 47 has about 80 rose, so if there are 366 seats, so 366 seats in a Boeing 7 47 That means that 366 divided by seven would be about 52 rows.

• Now if I were to say, a typical chair for a person is about 18 inches wide and a Boeing 7 47 has three aisles of seating with potentially four seats in the middle three seats on either end, how many seats are in just one road?

• I'm gonna add two seats per row because there's an aisle here where I can add a seat hypothetically.

• So if I'm adding two seats per roll, that would give me 104 extra seats that I could fit in for that first layer across the bottom.

• There's 470 seats on the bottom layer, times 225.

• That gives me 105,750 golf balls.

• So we have six and four is 10, so we have 10 times 18.

• That gives us 180 inches.

• Then we multiply that by 80 rose.

• That's 14,400 inches.

• Give me 1200 ft.

• So now we would have to corporate circulation.

• Now you got to think about those golf balls are really small.

• I've got so many gaps in between each seat.

• So if I were to relate circulation to an airplane, that would mean the aisles that go from the front and the back of the plane, the space in between the seats so that everyone can get to their seat comfortably.

• I'm gonna seriously ballpark this to across.

• I've got seven seats.

• Let's say there are seven gaps where 100 golf balls can fit.

• That's seven gaps on each row.

• So seven times 52 rows is 364.

• So 364 times let's say in each gap, 100 golf balls can fit 36,400.

• And like a typical building in New York City's standard of quality housing, you need about 30% of circulation in a in a space.

• So what's 30% of 1200 ft?

• That's 360 ft.

• That's 360 square feet.

• I just realized it's not just feet 1200 square feet, plus 360 gives us 1560 square feet, so that includes seats and circulation.

• So now I'm gonna picture how many layers of seats can I stack on top of each other in that gap in the cabin?

• I'm gonna say maybe three rows because the seats are high.

• So then I'm gonna do that number times three, 317,000, 250 golf balls.

• That's how many golf balls I have in three layers of seats.

• And that comes out as being 353,000, 600 50.

• Now we have to think about the cockpit where the pilot is, as well as areas for meal prep and the bathrooms.

• X two is very big.

• It's like 52 rows, plus the space on top.

• So I'm going to say there's got to be at least 10 that'll fit in there Now Maybe that's a little bit overestimating, but I think I underestimated for the amount of golf balls anyway, so let's just go with that.

• So I'm just gonna estimate 40% because typically in a building you have tow think about 40% of the space goes toe infrastructure like mechanical systems and plumbing.

• So if there are 353,650 golf balls that fit into the cabin.

• There would be 10 that fit in there.

• So that number divided by 10, that's gonna be 35,000, 365.

• What's 40% of 15 60 square feet?

• So now we'll do 624 plus 1560 that'll get us 2184.

• So now we have the floor plan covered, and now we have to think about it in volume.

• The X three is what we have left.

• Typical height in an apartment in New York could be around 8 to 10 ft high and then the height of the carry on luggage.

• So we'll say 11 ft head Clarence, and then we'll add an additional 2 ft for the material of the plane.

• And so that's 13 ft height.

• I don't actually know exactly how big 7 47 is, but I would imagine a very, very big now if we have to consider the space below where the baggage claim is.

• Typically, someone can actually walk in that space to grab luggage.

• I would say that It's roughly the same size as the cabin or maybe even bigger.

• And so I will just double that height and make that 26 ft.

• Now I would multiply 26 ft I 2184 square feet.

• The grand total is now 35 3 65 plus 353 6 50 plus 3 53 again 6 50 equals 742,665.

• So that's a grand total for a 7 47 that does not actually have the 366 seats.

• So my last step would be to divide the total cubic feet of the plane by the cubic feet that I figured out for the golf ball.

• But if we have an airliner, we do have those seats that can't hold the golf balls.

• 56,784 cubic feet, divided by 12 cubic feet.

• That total answer would be 4732 golf balls.

• If it has 366 seats, 366 seats times.

• However, many golf balls can fit into each seat we said was 225.

• So 3, 66 times 225 would give us 82,350.

• That really does not feel real.

• I'm not comfortable with that answer.

• So I'm going to do this number minus this number to get our grand total for an airline.

• 7 47 gives us 660,300 and 15 golf balls.

• Oh, I know what the problem is.

• I did 12 cubic feet, not 12 cubic inches, so there's actually another step that would be multiplying by 12.

• 0, that's funny, which would give me 56,000, 784 Golf ball.

• Final answer.

• I have a gut feeling that that's way too little.

• It may be a little bit low still.

• I mean, I'm gonna have to trust the math.

• At this point, I thought I would come out to a number that was maybe a million or so.

• I think I told you I head rest is about like this big.

• So if I were to go back, I'd probably tweet the size of the golf ball.

• I think far more than 15 golf balls can fit into.

• There may be more along the range of 25 or 30 golf balls in aviation, they always want you to refer back to fax.

• You're always supposed to follow your checklist in an emergency.

• You're supposed to rely on your instruments.

• It did bring back the inner third grade in me, where it's like, Oh, you got to stay up all night and figure out this math problem.

• Do you have an actual answer?

• Well, not exactly.

• We found a lot of different answers to this brainteaser.

• But the whole point of these questions is to show how people think Google no longer ask these brain teasers because they don't predict how well someone would do at a job.

• But we wanted to have a little fun with it.

Well, I hope that's accurate.

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A2 golf golf ball cubic seat boeing circulation

# Pilot And Architect Answer Google’s Boeing 747 Brain Teaser

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林宜悉 posted on 2020/11/07
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