All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Logic
Nicknames (Posted on 2005-12-21) Difficulty: 2 of 5
Four friends: Dave, Mike, John, and Terry, are nicknamed Stick, Batman, Atomic Head, and Feaser, but not in that order. Which friend has which nickname?

A. John is faster than Batman but not as strong as Atomic Head.
B. Batman is stronger than Terry but slower than Feaser.
C. Dave is faster than both Stick and John, but not as strong as Batman

Strength and speed are independent qualities.

(from Terry Stickels)

See The Solution Submitted by monica    
Rating: 2.6000 (25 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution solution | Comment 2 of 40 |

Ok, the first thing we do is make a table that will show our data for us.

              Dave    Mike    John    Terry

Stick          ?          ?         ?         ?        

Batman      ?          ?         ?         ?

Atomic       ?          ?         ?          ?

Feaser        ?         ?         ?          ?

So, then we look at clue #1. If John is faster than Batman, he can't be Batman, and if he is stronger than Atom, he can't be Atom either. 

              Dave    Mike    John    Terry

Stick                                             

Batman                           X         

Atomic                            X          

Feaser                                      

For clue #2, we learn that Terry can't be Batman or Feaser.

              Dave    Mike    John    Terry

Stick                                            

Batman                            X         X

Atomic                             X          

Feaser                                       X

In clue #3, we learn that neither Dave nor John can be Stick or Batman.

              Dave    Mike    John    Terry

Stick          X                   X                

Batman      X                  X         X

Atomic                            X          

Feaser                                       X

From there, we can reason that John is Feaser and Mike is Batman, since there are no other possibilities for those two. Then we know that nobody else can be Batman, and Mike can't be anybody but Batman. Same goes for John and Feaser.

              Dave    Mike    John    Terry

Stick          X         X         X                

Batman      X         O        X         X

Atomic                   X        X        

Feaser       X          X       O          X

Now, Dave can only be Feaser, and Terry can't be Feaser so he is Stick.

              Dave    Mike    John    Terry

Stick          X         X         X        O       

Batman      X         O        X         X

Atomic        O         X        X        X

Feaser       X          X       O          X

So, Dave is Atomic Head, Mike is Batman, John is Feaser, and Terry is Stick.

 


  Posted by saprom on 2005-12-21 10:54:54
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (14)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information