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Aug
9
comment Has anyone heard of this maths formula and where can I find the proof to check my proof is correct? $\sum^n_{i = 1}i + \sum^{n-1}_{i=1}i = n^2$
Bounty awarded for a good explanation with good use of the capabilities of LaTeX/MathJax.
Aug
7
revised Monty hall problem extended.
Linked to comment
Aug
4
revised convert price per PU in price per ton
Formatting
Aug
4
suggested approved edit on convert price per PU in price per ton
Aug
4
revised Smallest number that is divisible by $7$ and leaves a remainder of of $1$ when divided by $2, 3, 4, 5,$ or $6$
Formatted.
Aug
4
suggested approved edit on Smallest number that is divisible by $7$ and leaves a remainder of of $1$ when divided by $2, 3, 4, 5,$ or $6$
Feb
13
revised Can you cancel out a term if equal to zero?
Another fun one
Feb
13
revised Is there a size of rectangle that retains its ratio when it's folded in half?
Full calculation added
Feb
13
suggested approved edit on Is there a size of rectangle that retains its ratio when it's folded in half?
Feb
13
comment Is there a size of rectangle that retains its ratio when it's folded in half?
This ratio is that common that it came as a shock to me when I learned that not all ratios scale.
Feb
12
revised Width and height ratio of object in image
Fixed spelling
Feb
12
suggested approved edit on Width and height ratio of object in image
Nov
7
awarded  Yearling
Oct
22
revised Can you cancel out a term if equal to zero?
Minor grammar
Oct
22
answered Can you cancel out a term if equal to zero?
Oct
13
revised A beautiful game of gold and silver coins
Minor adjustments
Oct
13
answered A beautiful game of gold and silver coins
Oct
13
revised A beautiful game of gold and silver coins
Grammar, formatting, clarification
Oct
13
suggested approved edit on A beautiful game of gold and silver coins
Oct
2
answered Probability that the sum of three integer numbers (from 1 to 100) is more than 100