Selection Post Phase XIV (10th)25 Sep 2026Shift 3Average

What is the average of the first 'n' natural numbers where n = 30?

पहली 'n' प्राकृत संख्याओं (Natural number) का औसत (Average) क्या है, जहाँ n = 30 है?

Answer और ExplanationAnswer and explanation

Answer: (B) 15.5

पहली n प्राकृत संख्याओं (Natural numbers) का औसत (Average) = n + 12
n = 30 के लिए: 30 + 12 = 312 = 15.5
✓
औसत 15.5 है।
Average of the first n natural numbers = n + 12
For n = 30: 30 + 12 = 312 = 15.5
✓
The average is 15.5.

Source: Selection Post Phase XIV (10th) · 25 Sep 2026 · Shift 3। Solution: Prashant Sir, Vijayastra।Source: Selection Post Phase XIV (10th) · 25 Sep 2026 · Shift 3. Solution by Prashant Sir, from Vijayastra.