Question

1+2+3..................+99=
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Answer 1

Answer:

$sum \: of \:x \: natural \: numbers = \frac{x(x + 1)}{2}$

$sum = \frac{99(99 + 1)}{2}$

$sum = \frac{99 \times 100}{2}$

$sum = 99 \times 50$

$sum = 4950$

Answer 2

your answer is 4895 this is right answer