VAHID

Members
  • Content count

    29
  • Joined

  • Last visited

    Never

Community Reputation

0

About VAHID

  • Rank
    Junior Member

VAHID's Activity

  1. VAHID added a topic in New Logic/Math Puzzles   

    A picture hidden in behind.
    Please see in another Dimension!!
    what do you see?

    • 9 replies
    • 786 views
  2. VAHID added a post in a topic   

    amazing text!!
    Thanks
    • 0
  3. VAHID added a topic in New Logic/Math Puzzles   

    If 'n' people are going to buy tickets in a ticket shop that is open for 'n' minutes, how long will the maximum queue time be, given that they arrive randomly within the time scope?

    • 2 replies
    • 104 views
  4. VAHID added a post in a topic Spinning Sihouette Optical Illusion   

    what is the spinning direction of middle girl (right or left)?


    • 0
  5. VAHID added a post in a topic   

    1158
    • 0
  6. VAHID added a topic in New Logic/Math Puzzles   



    • 6 replies
    • 478 views
  7. VAHID added a post in a topic   

    zero
    • 0
  8. VAHID added a post in a topic   

    tnx
    • 0
  9. VAHID added a post in a topic   

    now, it's true
    • 0
  10. VAHID added a post in a topic   


    my program is correct with 4 digit , my condition (x>999) reject all number lower than 999 so zero is not a problem
    about n=5, 10 ,20,... , i think, first we must solve problem with 4 digit (n=2) then other sample will be solved.
    my program said: 20250 and you said 9000!



    • 0
  11. VAHID added a post in a topic   

    we can creat 9999 number for n=4
    i write this program with matlab for n=4

    sum=0;
    for i1=0:9
    for i2=0:9
    for i3=0:9
    for i4=0:9
    x=i1*1000+i2*100+i3*10+i4;
    if x>999
    sum=sum+(det([i1 i2 ;i3 i4]);
    end
    end
    end
    end
    end
    sum

    this program generate all number with n=4 (x>999)
    calculate sum of determinate of this number , answer is: 20250

    i think you question have a bug , please send the source question (you siad : I found this puzzles at a site)
    • 0
  12. VAHID added a post in a topic   

    please give us another example,
    i write a program for n=2
    we have 10000 state and just 163 unique number exist!
    • 0
  13. VAHID added a post in a topic   

  14. VAHID added a post in a topic   

    E={1,3,7,9}
    H+((2*E)/10)+10=R
    ....
    very hard!
    • 0
  15. VAHID added a post in a topic   

    answer is 7
    because
    2 seconds to 2
    and 5 seconds to 3
    • 0