Question

what is the sum of first 10 natural number
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Answer 1

Answer:

The sum of first 10 natural number is 55

Answer 2

Solution :

We know that , the sum of first n natural number is given by

$\star \: \: \sf \large \fbox{ \fbox{ \pink{ S_{n} = \frac{n(n + 1)}{2}} }}$

Put the value , n = 10 , we obtain

$\sf = \frac{ \cancel{10}(10 + 1)}{ \cancel{2}} \\ \\ \sf= 5(11) \\ \\ \sf = 55$

Thus , the sum of first 10 natural no. is 55

More Information :

What is natural number ?

A natural number is a counting number,

A member of the set {1, 2, 3, 4,….}

It is denoted by N