If A= x : x is a multiple of 2 , B= x : x is a multiple of 5 and C= x : x is a multiple of 10 , then A (B C) is equal to

NDA 2017 Mathematics question

If , and , then is equal to

Answer: (C)

Every multiple of 10 is a multiple of 5 and of 2, so and

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Question ID VK-028698