Snow White

Logic Level 3

Snow White and the seven dwarves, fed up with being pestered by autograph hunters, changed their names and went off to work - all 8 of them, one behind the other in a single file line - confident that now they would not be recognised.

PS: In the following clues, we are using their code names.

1) There were 2 places between Florence and Ernie, while Bertie was immediately in front of Henry.

2) Celia was 3 places in front of Daniel and there were 2 places between Andrea and Brian. Brian was somewhere in front of Florence, Henry was somewhere in front of Celia, and Ernie was immediately in front of Andrea.

Perhaps they should have changed their clothes as well, because a fan ran up to the fourth from the front and shouted, "You're Dopey!"

What was Dopey's code name?

Florence Bertie Andrea Celia Ernie Henry Brian Daniel

2 solutions

Finn C
May 21, 2016

Dopey's code name was Celia.

BTW: Below when you see _ it means unknown.

Since Ernie is immediately in front of Andrea, the Florence/Ernie and Andrea/ Brian relations can be either F _ E A _ _ B, F B _ EA, EA _ F B, or B _ E A _ F.

Note: Those relations were only showing Florence, Ernie, Andrea, and Brian. Only in the last of these is Brian ahead of Florence.

The Henry / Celia relation puts the Bertie / Henry relation in front of the so that the Celia / Daniel relation fills the gaps in between.

Therefore, the order of the line is Bertie, Henry, Brian, Celia, Ernie, Andrea, Daniel, and Florence.

Geneveve Tudence
May 27, 2016

In the following clues, we are using their code names.

1) There were 2 places between Florence and Ernie, while Bertie was immediately in front of Henry.

note:

one "?" represents one name.

up=back bottom=front

Clue#1.1

-Florence

-Ernie

Clue#1.2

Henry

Bertie

Clue#2.1 (Celia was 3 places in front of Daniel)

Daniel

Celia

Clue#2.2 (there were 2 places between Andrea and Brian)

Andrea

Brian

Clue#2.3 (Ernie was immediately in front of Andrea)

Andrea

Ernie

Or, from the previous Clue#2.2

Andrea

?Ernie

Brian

-----------------------------------------Analyzing and Combining of Clues--------------------------------------------------------

In the first clue, there states that there are two places between Florence and Ernie. In the second item clue, Ernie is immediately in front of Andrea. So, combining the given, Andrea will take one of the two places between Florence and Ernie giving us.:

-Florence

-Andrea

-Ernie

Since in the second item clue, it is also stated that there are two places between Andrea and Brian, we can now have:

-Florence

-Andrea

-Ernie

-Brian

Since Henry is somewhere in front of Celia and note that there are two places between Daniel and Celia, clearly, there's no other way but both Daniel and Celia will take the missing places in the previous arrangement:

-Florence

-?------->Daniel

-Andrea

-Ernie

-?------->Celia

-Brian

Lastly, there are only two code names left which are Henry and Bertie. Since it is given that Henry is somewhere in front of Celia and that Bertie is immediately in front of Henry, therefore we can put them below or in front of Brian ( which is in front of Celia) giving us the complete arrangement.:

(back)

Florence

Daniel

Andrea

Ernie

Celia

Brian

Henry

Bertie

(front)

With this complete arrangement, a fan ran up to the fourth from the front and shouted, "You're Dopey!" which obviously mean that the fourth person is Dopey therefore, Dopey's codename is Celia!

Hope my solution is clear. :)

It's very clear, nice one! ...(up vote)

Finn C - 5 years ago

Thank you! This was just an amazing problem for logic. :)

Geneveve Tudence - 5 years ago

Was searching for a question not too hard, or easy.

Finn C - 5 years ago

Snow White

2 solutions

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