Three containers A, B and C are filled with milk part ¼ part of A is put into B. Now ⅓ part of B is put into C. Again 5/11 part of C is put into A. In the end, ¼ part of A is put into B again. Now the final amount of milk in each container is 6 litres. The initial quantity (in litres) of milk in each container, respectively is equal to:-