A and B are partners sharing profits in the ratio of 11:4. C was admitted. A surrendered 1/11th of his share and B surrendered 1/4th of his share in favour of C. The sacrificing ratio will be :

1:1

The correct answer is option 2- 1:1.

Old ratio = 11:4 (A & B)
A surrendered 1/11th of his share and B surrendered 1/4th of his share in favour of C.

Sacrifice of A = (1/11)*(11/15)
                     = 1/15

Sacrifice of B = (1/4)*(4/15)
                     = 1/15

Sacrificing Ratio = 1/15 : 1/15
                         = 1:1