Question

pleass send me answer plz​

Answer 1

Step-by-step explanation:mark me brainliest and thanks my answer

•If A can do the wrok in 14 days, his work per day = 1/14.

•if B can do the work in 21 days, his work per day = 1/21.

•if A and B work together, work per day = (1/14)+(1/21) = 5/42.

•Hence work will be completed, if and B work together = 42/5 = [ 8+(2/5) ] days.