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Sticky Note
If you add up the numbers 1 - 200 consecutively (1+2+3+4+5 ..... + 200) the total is?
  1. 20200
  2. 20050
  3. 20100
  4. None of these
Explanation

The sum of the first n natural numbers can be calculated using the formula:

n(n + 1)/2

Here, n = 200:

Sum = 200(200 + 1)/2

= 200 * 201 / 2

= 20100

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