What is The Sum of The First Twenty Natural Numbers?

  1. 220
  2. 200
  3. 210
  4. 232
Monis Rasool Professor Asked on 7th September 2015 in Maths.
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1 Answer(s)

Answer: (3) 210

Explanation:
Formula-
The sum of the n natural number = n (n + 1)/2
 Then, the sum of 20 natural number = 20 (20  + 1)/2
= 10 x 21
= 210

Then, the sum of 20 natural number is 210.

Hence, the answer is (3) 210.

Anurag Mishra Professor Answered on 9th September 2015.
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