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Class 10 Mathematics Arithmetic Progressions (AP)Finding the sum of the first $n$ terms of an APMedium

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What is the sum of the first (25) positive odd numbers?

Answer and explanation

Correct answer: (625)

The sum of the first (n) odd numbers is (n^2), so (25^2=625). This result is useful for quick calculation.

Related tags

Odd Numbers Ap Sum Class 10 Finding The Sum Of The First $N$ Terms Of An Ap Finding The Sum Of The First N Terms Of An Ap Arithmetic Progressions (Ap)Arithmetic Progressions Ap Mathematics

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