Question

if A and B can do the work in 6 days.A can do 10 days alone.how many days if they work together​

Answer 1

Answer:

Had 'a' worked alone, he'd have taken 10 days, so in 1 day, 'a' will do 60/10=6 units of work. Further, Work is done by 'a+b' together in 6 days ...