alleryকোনটো যোৰা যমজ মৌলিক সংখ্যাৰে গঠিত, যিবোৰ মৌলিক সংখ্যাৰ পাৰ্থক্য 2?
A19 আৰু 25
B13 আৰু 15
C11 আৰু 13
D17 আৰু 21
Answer & Solution
Correct answer: C. 11 আৰু 13
11 আৰু 13 দুয়োটা মৌলিক সংখ্যা আৰু ইহঁতৰ পাৰ্থক্য 2, আনহাতে 15, 21 আৰু 25 যৌগিক সংখ্যা।
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