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A can do a job in 10 days and B in 20 days. They work together, but 4 days before the finish of the job, A left. How many days did they work together?(A) 6(B) 163(C) 8(D) 14

Harshit Singh , 3 Years ago
Grade 12th pass
anser 1 Answers
Pawan Prajapati

Last Activity: 3 Years ago

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