Showing posts with label frogs. Show all posts
Thursday, January 8, 2015
Frogs
brain
,
frogs
,
frogs puzzle
,
logic
,
logical puzzles
,
play logical games
,
play puzzles online
,
puzzle
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Amanda:
"I am a frog but I look like a princess."
"There are at least three frogs between the four of us."
Barbara:
"I'm a princess."
"Corinna always lies."
Corinna:
"There is only one frog here."
"I'm a frog that looks like a princess."
Deborah:
"Two of us are frogs."
"I'm a princess."
Are there any frogs? If so, what are their names
Frogs Puzzle Solution
The only frog is Amanda. The table below shows, on the left, all possible combinations of frogs (X stands for frog, - stands for non-frog), while on the right pane there is the control of the truthfullness (T for true, F for false) of each given statement, for each combination of frog population. The only combination where every girl tells one true statement and one false one, is the emphasised row. Hence, there's only one frog, and that's Amanda.| Possible Frogs | Statement | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | A | B | C | D | ||||
| - | - | - | - | F | F | T | F | F | F | F | T |
| - | - | - | X | F | F | T | F | T | F | F | F |
| - | - | X | - | F | F | T | F | T | T | F | T |
| - | - | X | X | F | F | T | T | F | T | T | F |
| - | X | - | - | F | F | F | F | T | F | F | T |
| - | X | - | X | F | F | F | F | F | F | T | F |
| - | X | X | - | F | F | F | T | F | T | T | T |
| - | X | X | X | F | T | F | T | F | T | F | F |
| X | - | - | - | T | F | T | F | T | F | F | T |
| X | - | - | X | T | F | T | F | F | F | T | F |
| X | - | X | - | T | F | T | T | F | T | T | T |
| X | - | X | X | T | T | T | T | F | T | F | F |
| X | X | - | - | T | F | F | F | F | F | T | T |
| X | X | - | X | T | T | F | F | F | F | F | F |
| X | X | X | - | T | T | F | T | F | T | F | T |
| X | X | X | X | T | T | F | T | F | T | F | F |
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