Question

11. A and B can together finish a work in 8 days. If A alone can do it 24 days. B alone will finish the work in​

Answer 1

Answer:

Step-by-step explanation:

A and B together take 8 days [ Here ‘A’ and ‘B’ refers to the work done by ‘A’ and ‘B’] .

A takes 12 days .

So,

Let the work done by A ( in 1 day ) be one -twelfth(1/12) of the work done ..

so,

in 8 days =

= 8/12

So.. now we can say that A has done 1/8 of the work ..and B has done 1/B of the work .

1/A + 1/B = 1/12 [Here B refers to number days taken by B to do the work ]

1/8+ 1/B = 1/12

1/B = 1/24

[ We equate the denominators as the numerators are equal ]

No of days B takes to complete the work = 24 days ..

Answer 2

Answer:

A and B,s one day work=I/8

A,s one day work=l/24

B's.....I/8-I/24=3/24 - I/24=2/24=I/12

B finish in 12 days