TS TET Paper 1 Model Paper 4 (తెలుగు)

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Question : 108 of 150

Marks: +1, -0

మొదటి n సహజ సంఖ్యల సగటు?

${ n+1}/2$
${n(n+2)}/2$
${n+1}/4$
${n(n+1)}/2$

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