Question

find the sum of all natural numbers from 1 to 100​

Answer 1

Step-by-step explanation:

the sum of all natural numbers from 1 to 100 is 5050

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Answer 2

Answer:

The sum of all natural numbers from 1 to 100 is 5050.

Step-by-step explanation:

Let S be the required sum.

Clearly, it is an Arithmetic Progression whose first term (a) = 1, last term (l) = 100 and number of terms (n) = 100.

We know the formula for finding sum,

Sn=n/2[2a+(n-1)d]

Sn=100/2[2(1)+99(1)]

Sn=50*101=5050

Therefore, the sum of first 100 natural numbers is 5050.

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