`A\ a n d\ B` can polish the floors of a building in 10 days. `A` alone can do `1/4` of work in 12 days. In how many days can B alone polish the floor?

A\ a n d\ B can polish the floors of a building in 25 days. A alone can do 1/3 of this job in 15 days. In how many days can B alone polish the floors of the building?

A and B can finish a work in 20 days.A alone can do (1)/(5)th of the work in 12 days.In how many days can B alone do it?

W and T together can do a work in 140 days. W alone can do the work in 160 days. In how many days can T alone do the work?

A and B can do a work in 8 days and A alone can do it in 12 days. In how many days can B alone do it?

Aman and Raman together can do a work in 10 days. Aman alone can do the work in 12 days. In how many days Raman alone can do the work?