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Question

How do you find the sum of 1 to 100?


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Solution

To find the sum of 1 to 100:

To find the sum of n natural numbers, we can use the formula given below.

Sum of first n natural numbers =n(n+1)2

The sum of 1 to 100 means the sum of the first 100 natural numbers.

Thus, substituting n=100 in the above formula,

The sum of 1 to 100 =12100(100+1)

=(100×101)2=50×101=5050

Hence, the sum of 1 to 100 is 5050.


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