allery7 আৰু 21-ৰ ল.সা.গু. কিমান?
A21
B7
C3
D147
Answer & Solution
Correct answer: A. 21
21 ইতিমধ্যে 7-ৰ এটা গুণিতক, গতিকে আটাইতকৈ সৰু সাধাৰণ গুণিতকটো হ'ল 21।
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