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.... For example, the top is 0; “east” is .25, the bottom is .5, and so forth.
You generate two random numbers between 0 and 1, mark them on the circle and draw a lime between them to form a chord....
Using just four 4's and standard mathematical symbols, create the number 3.1416 (that's 3.1416 exactly).
[ In TeX notation, answer easily fits in a line of say 60 chars. ] [ So no need for thousands
...know if this passed by this ng already, but I need to ask...
Can anyone calculate the cubic root from a number using a eletronic calculator which have only the square root key??...
...know if this passed by this ng already, but I need to ask...
Can anyone calculate the cubic root from a number using a eletronic calculator which have only the square root key??...
...tt.com/~njas/sequences/ and search for '10, 19, 36, 68, 128, 240'.
You should find the sequence with ID Number A053218. The next value after 2816 in *THAT* sequence is 11. That sequence is *NOT* my ...
Is everyone generally convinced that this one is totally screwed up? I've got a number of different errors and can't find the correct combination.
Even with a clue from someone in the group as to th
...p of the table. If you find a solution, give an example. If you can't find a solution, what's the maximum number of squares that you can form?
Follow-on: Come up with some interesting 'blackout' pat...
...his puzzle really is right in front of you.... What could I mean by that, hint hint?
This is the entire number sequence: 1, 5, 3, 3, 3, 4, 5, 6, 8, 7, 8, 9, 7, 6, 9, 10, 1, 4, 2, 5, 7, 4, 2, 2, 6, 1...
Prove that the number of people who have shaken hands an odd number of times with other people, is even.
... of them each time, and also any regular mathematical signs you may require, make up expressions for each number in turn working up from 1. For example, you can express 30 as 66-(6*6).
You can use p...
...o dollars altogether.' 'That's fine,' his mother declared. 'How many did you buy?' The boy told the total number, and his mother went on reading. But some moments later she stopped, and then did some ...
there are three girls, the product of their ages is 36 and the sum of their ages is their apartment number. The eldest girl hair is red color, can you guess the ages of the girls ? thank you
The Meme Machine Quiz, number 18 has been published at
http://www.mwillett.dabsol.co.uk/
New URL, the site is bigger than ever, the quiz is more challenging than ever.
+ Which Shakespearean char
...tricia 102 and Charlotte 150 then how many competitions has Louise won?
I have used the normal alphabet-number relation(i.e. a=1, b=2, etc) but just can't see the pattern. The closest I have got is ...
The Riddle regards two numbers between 2 and 99 (1
...on. Submitting an incorrect answer for any question will result in disqualification.
Let N be the total number of entrants. Let X be the number of entrants who chose an answer.
1. Choose a letter ...
i can't solve this puzzle: Make a correspondence of letters to numbers so that A=1, B=2, all the way to Z=26. Then try to find a word in the english language whose product is 1 million. The closest i'
...there is a standard algorithm to solve the magic square problem for a grid of size n*n, where n is an odd number. What about solutions for even n?
What is the best solution? (in terms of time comple...
Why man is most comfortable with decimal number system?
Hint : Has got simple explanation. and certainly do not require you to use any paradox or 1/0 philosophy :-)
Let SM1 = 1 SM2 = 12 SM3 = 123 SM4 = 1234 ... SM10 = 12345678910 SM11 = 1234567891011 etc.
a) Find n such that n is the least positive integer >= 1000
where 7 is a prime factor of SMn.
b) Find n
...Two hours ago your watch stopped at 06:15am. What time should it be displaying?
2) What should the next number be in the following sequence?
5, 8, 6, 8, 11, 8, 11, 15, 22, _?_
3) Frank walks int...
...EQUENCE
I'm sure you all know how sequence problems work. Just in case you don't, below are a series of numbers, the final term of which, has been replaced by a question mark. You have to provide a ...
... The algorithm ends when no overlaps are found. This simple algorithm is relatively inefficient for large numbers of regions (like a bubble-sort versus a quick-sort). To obtain greater efficiency, wha...
...to have been a loser in the game A vs. B, and both A and B were defeated by either C or D. So the maximum number of wins they can have is 5. (they played 7 games and lost at least 2)
You can't have ...
...of a national undergraduate math contest when I was an undergraduate.)
Instead, let p/q be any rational number, and express p/q explicitly as the sum of 4 rational numbers cubed.
(This problem has...
...is problem was posted a while ago:
It is interesting to find a general solution to this problem for any number of balls and any number of levels. We have seen that with 2 balls and 100 levels 14 dro...
.... deserts ('desserts' of Arabia) 6. Caracas (capital of Venezuela) 7. Ben (TV series, Gentle 'Bob') 8. 2 (number of factors a prime number has) [in natural numbers] 9. number (Spanish word numero) 10....
...asked him how many meals he usually had each day.
'Well,' replied Waldo, 'I'm thinking of three 3-digit numbers that add up to 1999.' 'Yes ... ' I ventured 'And all the digits are different, no repe...
Does anyone know the registration number of the Austin 7 Ruby car for the competion in the book called 'Ruby' by Colin Thompson?
...º°'°º¤ø,¸¸,ø¤º°'°º¤ø,¸¸,ø¤º°'°º¤ø,¸¸,ø¤º°
Suppose you have an infinite number of lottery balls, all of which have been uniquely numbered from 1 upwards. Furthermore,...
Two operations may be carried out with numbers: doubling and adding 1. In what least number of these operations can the number 0 be transformed into the number a) 1000 ? b) n ?
...e) in every 500,000 people. Assuming a population of 300 million in US, that would mean that the expected number of people in US with this condition is 600.
So, what is the probability that 2 of thi...
Given any two states of the rubik's cube, what is the maximum number of 90 degree turns necessary to make one state coincide with the other. i am unaware of the solution to this problem but i think it
One thing that's bothered me about the archive solution is that it asks about the general case of any number n coins, but then it only gives a solution for certain 'nice' n's; particularly:
n = (3^w
A friend's house has a burglar alarm with a ten-digit keypad which takes a four-digit number to disarm it. Unfortunately the four digits in the number are the only keys ever used, and these four digit
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