Answer : 4 6 days Explanation : Answer: D) 6 days Explanation: 4/10 9/x = 1 =

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Amar can do a piece of work in 10 days. He works at it for 4 days and then Arun finishes it in 9 days. In how many days can Amar and Arun together finish the work ?

Answer : 4 6 days Explanation : Answer: D) 6 days Explanation: 4/10 9/x = 1 =