A can do a piece of work in 14 days which B can do in 21 days . They begin together and work at it for 7 days . Then, A fell ill and B had to complete the work . In how many days the work was completed ?
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4
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piz inbox frd and brainiest
Answered by
4
Answer:
7
Step-by-step explanation:
days he will require...........
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