a can do a piece of work in 10 days and B can do the same work in 20 days they started the work together but after 5 days a leave of we will do the remaining piece of work in
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A. B
Done: 10. 20
Can: x-5 X
X-5/10+x/20=1
(2x-10+x)/20=1
(3x-10)/20=1
3x-10=20
3x=30. X=10
B will complete work in 1o days
Done: 10. 20
Can: x-5 X
X-5/10+x/20=1
(2x-10+x)/20=1
(3x-10)/20=1
3x-10=20
3x=30. X=10
B will complete work in 1o days
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