alleryThe sum of the first 10 natural numbers (1, 2, 3, …, 10) is:
A100
B45
C55
D50
Answer & Solution
Correct answer: C. 55
We have S₁₀ = 10/2 (1+10).
That is S₁₀ = 5×11.
So S₁₀ = 55.
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