Question

a can do apiece of work in 12days and b alone xan do it in 16 days . they worked together on it for 3 days and then A left. hiw lond did b take to finish the renaining work​

Answer 1

Answer:

☆ A's 1 day's work=1/12

♧B's 1 day's work=1/16

♡(A+B)'s 1 day's work=1/12+1/16=4+3/48=7/48

♤(A+B)'s 1 day's work=7/48×3=7/16

◇Remaining work=1-7/16=16/16-7/14=9/16

♡Time taken by B to finish the remaining work=9/16×16=9

Ans; 9 days.