Notam cele 3 panglici cu : a,b,c
a+b+c = 858 cm
b = a : 3 => a = 3×b
c = a-b
a |____|____|____|
b |____|
c |____|____|
avem 6 segmente egale = 858
858 : 6 = 143 (un segment egal)
a = 143×3 = 429
b = 143
c = 143×2 = 286
Verificare:
429+143+286 = 858
429 cm are prima panglica
143 cm are a 2-a panglica
286 cm are a 3-a panglica
