Question

In what
3. A and B working together can do a piece of work in 6 days,Balone
can do it in 8 days. Supposing B works at it for 5 days, in how many days
A alone could finish it ?​

Answer 1

Answer:

Given :

Number of days A and B together takes = 6 days

Number of days in which B can do = 8 days

To find : A alone can do it in = ? days

Solution :

Number of total units of work = LCM = 6 and 8 =24

Number of units A and B together do =  

Number of units B does =  

Since B works for 5 days,

So, Number of units done by B =  

Remaining units =  

Since  in 1 day by A

So, 9 units done by A in 9 days alone.

Hence, A takes 9 days to finish it .