A and B together do a job in 12 days and A could do the job in 20 days if he worked alone. How many days would B take to do the job if he worked alone?1). 302). 253). 244). 15

A and B together do a job in 12 days and A could do the job in 20 days

1.	A and B together do a job in 12 days and A could do the job in 20 days if he worked alone. How many days would B take to do the job if he worked alone?1). 302). 253). 244). 15
Answer» I am not SURE, MAY be 30 is CORRECT