allery1, 4, 9, 16, 20, 25 সংখ্যাগুলির মধ্যে কোনটি বেমানান তা চিহ্নিত করুন।
A16
B4
C25
D20
Answer & Solution
Correct answer: D. 20
20 ব্যতীত প্রতিটি পদই পূর্ণবর্গ সংখ্যা, কারণ 20 সংখ্যাটি 16 এবং 25-এর মধ্যে অবস্থিত।
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