P = {x : x, 12 এর গুণনীয়ক সমূহ} এবং Q = {x : x, 3 গুণিতক এবং (x≤12) হলে (P - Q) = কত?

A {1, 2, 4}

B {1, 3, 4}

C {1, 3, 6}

D {1, 2, 6}

Solution

Correct Answer: Option A

P = {x : x, 12 এর গুণনীয়কসমূহ}
∴P= {1,2,3,4,6,12}
এবং Q = {x : x, 3 এর গুণিতক এবং x≤ 12}
∴Q = {3,6,9,12}
এখন, P - Q = {1,2,3,4,6, 12} - {3,6,9,12} = {1,2,4}

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