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প্ৰথম পাঁচটা স্বাভাৱিক সংখ্যাৰ গড় কিমান?

A$2$
B$2.5$
C$3$
D$3.5$
Answer & Solution
Correct answer: C. $3$
যোগফল $= 1+2+3+4+5 = 15$. গড় $= \dfrac{15}{5} = 3$.
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