A and B can do a piece of work in 6 days and 4 days respectively. A started the work,worked at it for 2 days and then was joined by B. Find the total time taken to complete the work?
tiwarisantosh0p3rw03:
Ans please
Answers
Answered by
32
The work done by A in one day 1/6
The work done by B in one day 1/4
Together work done by A and B in one day 1/6+1/4 equals to 5/12
work done by A in 2 days equals to 1/3
Left work 1-1/3 equals to 2/3
5/12 is done in 1 day
1 is done in 12/5 day
2/3 is done in 12/5*2/3 equals to 4/5 days plus 2 days
According to me this is
The work done by B in one day 1/4
Together work done by A and B in one day 1/6+1/4 equals to 5/12
work done by A in 2 days equals to 1/3
Left work 1-1/3 equals to 2/3
5/12 is done in 1 day
1 is done in 12/5 day
2/3 is done in 12/5*2/3 equals to 4/5 days plus 2 days
According to me this is
good
Answered by
11
is not the answer
Answer is 8/5
Similar questions