Answer : 3 13 days Explanation : Answer: C) 13 days Explanation: Now, Total work = LCM(16, 8) = 48A

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A can build a wall in 16 days while B can destroy it in 8 days. A worked for 5 days. Then B joined with A for the next 2 days. Find in how many days could A build the remaining wall ?

Answer : 3 13 days Explanation : Answer: C) 13 days Explanation: Now, Total work = LCM(16, 8) = 48A