Question

A&B can do a piece of work in 20 days A can do same work in 60days in how many days will B do this work​

Answer 1

Answer:

lcm of 20 and 60 = 60

efficiency = 3, 1

efficiency of B = 3-1 = 2 unit

days he will take = 60/2 = 30 days (Ans)

( mark as brainlist)