Answer:
Step-by-step explanation:
George: x
Alex: x + 12
Carl: 3(x+12)
3x+36+x+x+12= 68
5x + 48 = 68
5x = 20
x = 4; George's age
4 + 12 = 16; Alex's age
3(4+12)= 3(16)= 48; Carl's age
George to Alex: 4:16 = 1:4
Alex to Carl: 16:48= 1:3
George to Carl 4:48= 1:12
Carl to Alex: 48:16 = 3:1
