Răspuns :
1 l_____l-2-l_____l-2-l_____l-2-l_____l-2-l
2 l_____l
3 l_____l-2-l_____l-2-l
4+1+2 = 7 segmente egale
418 - 2 x 6 = 418-12=406 (suma segmentelor egale)
406 :7= 58 (un segment) = al doilea numar
58 x4 +2 x 4= 232+ 8 =240 (primul numar)
58 x 2 + 2 x 2 = 116+4=120 (al treilea numar)
2 l_____l
3 l_____l-2-l_____l-2-l
4+1+2 = 7 segmente egale
418 - 2 x 6 = 418-12=406 (suma segmentelor egale)
406 :7= 58 (un segment) = al doilea numar
58 x4 +2 x 4= 232+ 8 =240 (primul numar)
58 x 2 + 2 x 2 = 116+4=120 (al treilea numar)
a+b+c=418
a=2c=>c=a/2
a/4-2=b
Vom inlocui in prima ecuatie:
a+a/4-2+a/2=418
(4a+a+2a-8)/4=418
(7a-8)/4=418
7a-8=1672
7a=1680
a=240
b=240/4-2=60-2=58
c=240/2=120
a=2c=>c=a/2
a/4-2=b
Vom inlocui in prima ecuatie:
a+a/4-2+a/2=418
(4a+a+2a-8)/4=418
(7a-8)/4=418
7a-8=1672
7a=1680
a=240
b=240/4-2=60-2=58
c=240/2=120