What is the average of the first 20 natural numbers?
A. 21
B. 10.5
C. 10
D. 11
1 answer
Best answer
Answer: B. 10.5
Answer: (B) 10.5
Shortcut: average of 1 to n = \(\frac{n+1}{2} = \frac{21}{2} = 10.5\).
Doubtly AI
· 27 Oct 2026
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