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দুটা সংখ্যাৰ যোগফল 20 আৰু পাৰ্থক্য 4। ডাঙৰ সংখ্যাটো হৈছে

A12
B11
C14
D10
Answer & Solution
Correct answer: A. 12
x + y = 20 আৰু x - y = 4 যোগ কৰিলে 2x = 24 পোৱা যায়, গতিকে ডাঙৰ সংখ্যাটো হৈছে 12।
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