A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:


A. 20            days
B. 22-1/2 days
C. 25            days
D. 30            days