# Which of the following option is wrong about natural numbers?

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Which of the following option is wrong about natural numbers?

(a) Sum of first n natural numbers can be calculated by using Iteration method

(b) Sum of first n natural numbers can be calculated by using Recursion method

(c) Sum of first n natural numbers can be calculated by using Binomial coefficient method

(d) No method is prescribed to calculate sum of first n natural number

I got this question during an interview.

The origin of the question is Sum of n Natural Numbers using Recursion in section Recursion of Data Structures & Algorithms II

## 1 Answer

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Best answer
The correct option is (d) No method is prescribed to calculate sum of first n natural number

The best explanation: All of the above mentioned methods can be used to find the sum of first n natural numbers.

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