A, B and C started a business investments of Rs. 12000, Rs. 24000 and Rs. 9000 respectively. After x months A withdrew his capital and after x more months 'C' withdrew his capital. If, at the end of one year they share the profit in the ration of 2 : 12 : 3; then the value of x is:
1
4
2
3
3
2
4
1