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هذا هو منتدى النقاش العام للغة الإنجليزية . عندما تريد وضع مساهمة هنا يجب اتباع هذه اللغة . المساهمات بلغات أخرى سيتم حذفها .يتم النقاش هنا بخصوص عدة مواضيع . من فضلك ضع أخطائك في قسم الأخطاء التقنية . و فكر قليلا قبل كتابة المواضيع

الإنجليزية >> كرة القدم في الحياة الحقيقية

Brain Teasers (58)


il Numpty >> الأحد جانفي 1 - 20:01

Don't let siege know, Lee. I think he was one of the survivors ... 

il Numpty
عضو
مسجل2018-10-19
eng Heath Hornets
eng Lee >> الأحد جانفي 1 - 20:39

He's definitely speechless.

eng Lee
عضو
مسجل2014-10-14
eng Canvey Pixels
il Numpty >> الأحد جانفي 1 - 21:28

Must have been the shot of laudanum that I gave him. 

il Numpty
عضو
مسجل2018-10-19
eng Heath Hornets
eng ipfreely >> الاثنين جانفي 2 - 18:33

@holt

Bat: $1.05

Ball: $0.05

eng ipfreely
عضو
مسجل2013-12-08
vi Lollapa Losers
eng ipfreely >> الاثنين جانفي 2 - 18:35

A circle of radius 1 contains a regular hexagon, whose 6 vertices touch the edge of the circle. That leaves 6 equal sectors (?) within the circle but outside the hexagon. What is the area of one of these 6 sectors (or whatever you call them)?

eng ipfreely
عضو
مسجل2013-12-08
vi Lollapa Losers
il Numpty >> الاثنين جانفي 2 - 19:05, التعديل الاثنين جانفي 2 - 19:21

I thought I'd wait until we were on page 2 before answering the bat/ball question. 

  • "How much does the bat and the ball cost?"

My answer is the bat and the ball costs $1.10 

For @ipfreely's question the challenge for me was to try and do it my head. (I believe that the area ouside the hexagon is called a segment. Similar in shape to the pieces of an orange.)

The hexagon itself is made up of 6 equilateral triangles where the sides are equal to the radius of the circle (=1). Since there are 6 segments the area of one of them is the difference in total area between the 1/6 of the circle and one of the 6 triangles making up the hexagon. 

So I make that 

  • π/6  - 1/4 * √3

Without resorting to a calculator (using π and √3 from memory) that comes to roughly:  

  • 0.0906 ... not too sure about the last digit, as I don't have a very accurate memorisation of √3.
il Numpty
عضو
مسجل2018-10-19
eng Heath Hornets
ng siege >> الاثنين جانفي 2 - 19:14

handicap

ng siege
عضو
مسجل2022-10-13
tt siege is still here
eng ipfreely >> الاثنين جانفي 2 - 19:51

@Numpty yes that sounds about right to me!

eng ipfreely
عضو
مسجل2013-12-08
vi Lollapa Losers
eng ipfreely >> الاثنين جانفي 2 - 19:52

So is @siege resorting to ableist slurs now?

eng ipfreely
عضو
مسجل2013-12-08
vi Lollapa Losers
il Numpty >> الاثنين جانفي 2 - 19:57, التعديل الاثنين جانفي 2 - 19:58

The really sad bit is memorising π and √3.

I remember the days before calculators and if you needed the square root of a number you needed to look it up in a book, called a log book. So for saving time it was useful to remember the more common ones, such as √2 and.√3. I had one teacher who even taught us a rhyme for √2 , "I wish I knew the root of 2", which is 1.414...

il Numpty
عضو
مسجل2018-10-19
eng Heath Hornets
ng siege >> الاثنين جانفي 2 - 20:21

maths.. universal problem for humans.. 

hehehe am one of them who don't understand the damn thing

ng siege
عضو
مسجل2022-10-13
tt siege is still here
il Numpty >> الثلاثاء جانفي 3 - 02:01, التعديل الأربعاء جانفي 4 - 10:30

Okay, maybe I'll start setting some puzzles as well. 

#1. "Make 25"

Using the numbers 2 4 6 and 8 (only once each) and any of the mathematical symbols + (plus) - (minus) * (times) / (divide) and left/right brackets (), produce an expression that equals 25. 

#2. "Raffle tickets"

Siege has ticket number 1, Pii has number 2, Taavi has 6, Onuelver has 55, Stockfish has 101, David has 1006, Alex Seymour has 1060. What ticket number does Vincent have? 

Bonus number(s): Nelson Mandela has 1600

il Numpty
عضو
مسجل2018-10-19
eng Heath Hornets
ee onuelver >> الثلاثاء جانفي 3 - 06:50

Damn there is so many different solutions when 2 might be used twice...

Vincent can have max. 1666 and there are some more ticket numbers available. If Vincent must be next in order after Alex it might be 1600. 

Well my math was mostly strong "3" as i didn't want to be nerd :D 

ee onuelver
عضو
مسجل2014-09-02
ee Puka City Strikes Back
il Numpty >> الثلاثاء جانفي 3 - 10:03, التعديل الثلاثاء جانفي 3 - 10:07

Good effort @onuelver. 

In fact Nelson Mandela had 1600, which coincidentally is also the street number of the White House. As that's extra information I'll add it to the question. 

il Numpty
عضو
مسجل2018-10-19
eng Heath Hornets
ee onuelver >> الثلاثاء جانفي 3 - 15:29

So Lionel Messi has ticket number 1102?

ee onuelver
عضو
مسجل2014-09-02
ee Puka City Strikes Back