A can do a job in 15 days, and B can do the job in 10 days. how many days will they take to finish the job if they wirk together? plss answer with proper solution...... i will mark them brainlist if there ans satisfied me.... pls ans fast
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Answered by
1
Answer:
(A + B)'s 1 day's work = ( 1 + 1 ) = 1 .
15 10 6
Work done by A and B in 2 days = ( 1 x 2 ) = 1 .
6 3
Remaining work = ( 1 - 1 ) = 2 .
3 3
Now, 1 work is done by A in 1 day.
15
Therefore 2 work will be done by a in ( 15 x 2 ) = 10 days.
3 3
Hence, the total time taken = (10 + 2) = 12 days
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6
Answer:
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