BMAD

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About BMAD

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    Senior Member
  • Birthday February 26

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BMAD's Activity

  1. BMAD added a question in New Logic/Math Puzzles   

    Folding a paper into a sphere
    Describe the dimensions needed to fold a single sheet of paper into a sphere.
    • 3 replies
    • 216 views
  2. BMAD added a question in New Logic/Math Puzzles   

    How big is the ladder
    A 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
    • 232 views
  3. BMAD added a question in New Logic/Math Puzzles   

    dividing infinity by 17
    What would be the remainder when 3^4^5^6^7 ... so on through infinity is divided by 17?
    • 2 replies
    • 139 views
  4. BMAD added a question in New Logic/Math Puzzles   

    Base 10 and base 3 equivalents
    Find all base-10 numbers that, when multiplied by eight, have exactly the same digits as their base-3 counterparts
    • 2 replies
    • 162 views
  5. 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.
    • 0
  6. 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.

    • 0
  7. BMAD added an answer to a question Partitioning a Triangle into similar pieces   

    Did this prove that it only works on 45-45-90 and 30-60-90 triangles or for all right triangles?
    • 0
  8. BMAD added a question in New Logic/Math Puzzles   

    Badminton
    John 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
    • 234 views
  9. 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.
    • 0
  10. 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.
    • 0
  11. BMAD added a question in New Logic/Math Puzzles   

    The mean of four numbers
    Assume 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
  12. BMAD added an answer to a question Packing equilateral triangles   

    Oh, lol. I was looking at it backwards 
    • 0
  13. BMAD added an answer to a question Packing equilateral triangles   

    this doesnt appear to be infinite though 
    • 0
  14. BMAD added a question in New Logic/Math Puzzles   

    Packing equilateral triangles
    Keeping 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