Răspuns :
a + 5a = 600
6a = 600
a = 600:6
a = 100
a /......../
5a /....../......./......./......./....../ ------» a + 5a = 600
1p + 5p = 6p (6a)
a = 600:6
a = 100
a + 5a = 600
6a = 600
a = 600:6
a = 100
a /......../
5a /....../......./......./......./....../ ------» a + 5a = 600
1p + 5p = 6p (6a)
a = 600:6
a = 100