42)A X B together finish a work in 20 days , BXC In 15 days OXA in 12 days. In how many days will the there be able to finish the work together ? find 'B' alone can finish the work? (a)50 days (b)60 days (c)75 Cavs (d)90 days
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Answer:
60 days
Step-by-step explanation:
B alone can finish the work in 60days.
All there can finish the work in 10 days.
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