Question

,A and B can complete a task together in 12 days B can complete a single task 30 days,but how days take A​

Answer 1

Answer:

20 days

Step-by-step explanation:

(1/A)+(1/B)=1/12

(1/A)=(1/12)-(1/30)     (B=30)

(1/A)=(1/20)

A=20

Therefore A can do the work in 20 days