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Results tagged with mathematics
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user 20499
A puzzle related to mathematical facts and objects, whose solution needs mathematical arguments. General mathematics questions are off-topic but can be asked on Mathematics Stack Exchange.
15
votes
Accepted
Math Scraps: 2 3 4 5 + =
Two possible answers (currently):
$3^2 = 4+5$
$\frac{4}{2} + 3 = 5$
Also, given that you've said 'anything in the braces can be used' and not everything in the braces has to be used:
$3 + 2 = 5$ …
- 2,672
2
votes
How many chocolates?
There are two interpretations of the problem, not made quite clear by OP. This one assumes that the first child splits the chocolates up onto thirds and the next child only uses one of these thirds.
…
- 2,672
-2
votes
1
answer
306
views
Mathematical Puzzle
1 * 1 = 1
2 * 13 = 2
3 * 3 = 3
44 * 8 = 4
73 * 5 = 0
90 * 60 = 0
Q1) What is the smallest set of numbers under this operation that can equal 5? 6?
Q2) What is 8 * 9?
Hint:
- 2,672
5
votes
Perfect Squares!
One solution (if these numbers do not have to be positive, but OP said 'no constraints').
Also interpreting 'each pair' as in two separate pairs, i.e. (A, B) and (C,D) but not (A,C) or (B,D):
Then …
- 2,672
6
votes
Make 11 from five identical digits
Working without the square/(root) functions:
0) Possibly too small
Possibly too small
Given by OP
Given by krnxprs
Unknown
Given in accepted answer
- 2,672
6
votes
6
answers
3k
views
I Solemnly Swear That I Am Up To No Good
Quite simple. Find the odd one out, follow the instruction to give you a letter and then give me the code word.
Two pieces of advice first:
1) They gradually get harder (in my opinion)
2) Don't f …
- 2,672
12
votes
4
answers
1k
views
What is my teacher's favourite animal?
My school teacher, has asked the above question in the spirit of Science Fortnight.
However, he has only left the following on the whiteboard:
Clue 1:
8, 6, 7, 9, 5, 6, 8, 6, 8, 4, _.
Clu …
- 2,672