The following questions are accompanied by three statements A, B and C. You have to determine which statement(s) is/are necessary/sufficient to answer the question.
In how many days a man and a woman can complete the work while working together?
A. The ratio of the efficiency of a man and a woman is 1:3.
B. A man and a child can do` (1)/(3)rd` work in 9 days and a child and a woman k in 12 days.
C. A woman can do`(2)/(3)` rd of the work in 14 days.

Options

A. Only A and C together
B. Only B and C together
C. Any two the three
D. Question can't be answered even after using all the statements

Answer

C