Answer:
The motorcycle weighs 216 and the bike weighs 24.
Step-by-step explanation:
C ... car; M... motorcycle; B ... bicycle
C = 1728
A car weight 8 times more than motorcycle. You now make an equation out of this.
C:8=M
1728:8=216
M=216
A motorcycle weight 9 times more than bicycle. You now make an equation out of this.
M:9=B
216:9=24
B=24