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# Find the sum of all the numbers from 1 to 200.

**Given:** Numbers from 1 to 200.

**To find:** Here we have to find the sum of all the numbers from 1 to 200.

**Solution:**

We can get the answer by using the formula:

$S\ =\ \frac{n( n\ +\ 1)}{2}$

__Putting value of n = 200__:

$S\ =\ \frac{200(200\ +\ 1)}{2}$

$S\ =\ 100\ \times\ 201$

$S\ =\ \mathbf{20100}$

So, sum of all the numbers from 1 to 200 is 20100.

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