Question

A and B together can do a piece of work in 6
days. A alone can do it in 9 days can B alone do it
?
o 18
O 14
O
16
20​

Answer 1

Step-by-step explanation:

A+B 1 day work = 1/6

A 1 day work = 1/9

B 1 day work = 1/6-1/9

= 3/54

= 1/18

B alone can donit in 18days

#666

Answer 2

Step-by-step explanation:

Let B can do the work alon in x days

Therefore work done by B in 1 day is 1/x

Work done by A in 1 day is 1/9

Work done by both in 1 day is 1/6

Therefore,

1/x + 1/9 = 1/6

1/x= 1/18

x=18 days