a - b = 600
a : 4 = b : 3 + 50
a |----|----|----|----|+200 (600:3)
b |----|----|----|
4 segmente egale + 200 - 3 segmente egale = 1 segment egal+200 = 600
600 - 200 = 400 (un segment egal)
a = 4 × 400 + 200 = 1600+200 = 1800
b = 3 × 400 = 1200
Verificare:
1800 - 1200 = 600
1800 : 4 = 1200 : 3 + 50
450 = 450 (adevarat)
