If aN = {ax : x ∈ N}, then set 6N ∩ 8N =(A) 8N(B) 48N(C) 12N(D) 24 – InterviewSolution

1.

If aN = {ax : x ∈ N}, then set 6N ∩ 8N =(A) 8N(B) 48N(C) 12N(D) 24N

Answer»

Correct option is (D) 24N

6N = {6x : x ∈ N} = {6, 12, 18, 24, 30, ……}

8N = {8x : x ∈ N} = {8, 16, 24, 32, ……}

∴ 6N ∩ 8N = {24, 48, 72, …..}

= {24x : x ∈ N}

= 24N

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