Math, asked by shaikhussain1994, 1 year ago

A and B can finished job in 12 days while a can finished the same job in 30 dys alone and what aboutB

Answers

Answered by raianuj944
2

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 .


shaikhussain1994: But answer is 20
raianuj944: yes
Answered by adityaaryaas
0

Answer:

20 days.

Step-by-step explanation:

Please find the attached image.

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