English, asked by MissCuteHeart, 6 months ago

please...answer it fast..

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Answered by keertananelluri919

1

Answer:

20/11 days. ...............

Answered by karanapusrinivasarao

1

Answer:

Let A and B work for 20- days and then A- alone completes the work in N- days, then

(20+N)/80 + 20/100 = 1

So 5(20+N)+ 4(20) = 400

So 5N= (400- 180)= 220

So N= 220/5= 44- days

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