I have five wonderful friends, one of whom is quite young. The sum of all their ages is 109. If I add pairs of ages, I get the following:
How old are my friends ?
Our twons
Vocabulary
Archives
-
▼
2007
(68)
-
▼
feb 2007
(25)
- Loyd’s „teacher” puzzle
- Lines
- Relations
- Greater-than and greater-than or equal to symbols
- Ages
- Origami
- What is a mathematician ?
- Diophantus
- Labyrinths
- Linear Functions
- The Sieve of Eratosthenes
- Tower of Hanoi
- Remaining numbers
- Aristotle said:
- Even function
- The multiplication symbol
- Graph
- KEIZO USHIO
- How Old Is My Daughter?
- Definition of a perfect number
- hello
- hello
- The symbols of mathematics
- hello
- hello
-
▼
feb 2007
(25)
No hay comentarios:
Publicar un comentario