Civil Services RPSC RAS Prelims 2024 Mock Test Mathematics Sequences and Series Arithmetic Progressions
The arithmetic mean of 1, 2, 3, 4, …. n numbers will be :
1
\(\frac{n}{2}+1\)
2
\(\frac{n+1}{2}\)
3
\(\frac{n}{2}\)
4
\(\frac{n-1}{2}\)
5
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