v+a+r = 98
v = a:2 => a = 2×v
r = 3×v+2
v |___|
a |___|___|
r |___|___|___|+2
avem 6 segmente egale +2 = 98
98 - 2 = 96
96 : 6 = 16 (un segment egal)
v = 16
a = 2×16 = 32
r = 3×16+2 = 48 +2 = 50
Verificare:
16 + 32 + 50 = 98
16 bile verzi
32 bile albe
50 bile rosii