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BMAD added a question in New Logic/Math Puzzles
Folding a paper into a sphereDescribe the dimensions needed to fold a single sheet of paper into a sphere.
 3 replies
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BMAD added a question in New Logic/Math Puzzles
How big is the ladderA ladder of length L is carried horizontally around a corner from a hall 5 feet wide into a hall 7 feet wide. What is the length of the ladder? 1 reply
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BMAD added a question in New Logic/Math Puzzles
dividing infinity by 17What would be the remainder when 3^4^5^6^7 ... so on through infinity is divided by 17? 2 replies
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BMAD added a question in New Logic/Math Puzzles
Base 10 and base 3 equivalentsFind all base10 numbers that, when multiplied by eight, have exactly the same digits as their base3 counterparts 2 replies
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BMAD added an answer to a question Random bullets
I am flattered as this is very similar to one of my old questions. Except, mine shot for a duration as opposed to a finite number of times.

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BMAD added an answer to a question Partitioning a Triangle into similar pieces
My English skills are missing the subtlety of what you are saying. Please, if you don't mind, can you you elaborate.

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BMAD added an answer to a question Partitioning a Triangle into similar pieces
Did this prove that it only works on 454590 and 306090 triangles or for all right triangles?

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BMAD added a question in New Logic/Math Puzzles
BadmintonJohn amd Julie are both good badminton players. Is it more likely that julie will win 5 out of 9 games or 4 out of 7?
 8 replies
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BMAD added an answer to a question The mean of four numbers
Yes. I see now that i left out a bit in the OP. It was meant to be read as "when c is increased by one, d has to decrease by two to keep the same OVERALL median.

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BMAD added an answer to a question The mean of four numbers
It is meant to be median, the condition a <b <c <d only holds true in the initial conditon. If c is increased and d is decreased but the median is maintained... the implication should be clear.

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BMAD added a question in New Logic/Math Puzzles
The mean of four numbersAssume that a < b < c < d. The mean of four whole numbers is 78. The median of a and b is 65. When c is increased by one, d has to decrease by two to keep the same median. What is the possible range of d values?
 6 replies
 245 views

BMAD added an answer to a question Packing equilateral triangles
Oh, lol. I was looking at it backwards

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BMAD added an answer to a question Packing equilateral triangles
this doesnt appear to be infinite though

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BMAD added a question in New Logic/Math Puzzles
Packing equilateral trianglesKeeping up with the triangle motif we've seen lately...
Suppose you have a regular hexagon. How many equilateral triangles can you pack in it if each vertex must touch an edge of the hexagon? What if the restriction was reduced to only needing to touch two edges of the hexagon?
 5 replies
 195 views