Question

how much do we get when we add 100 to 200​

Answer 1

Answer:

300

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Answer 2

Answer:

The correct answer is 14850.

Explanation:

Step : 1 A number is a numerical unit of measurement and labelling in mathematics. The natural numbers 1, 2, 3, 4, and so on are the first instances. Number words are a linguistic way to express numbers.

Step : 2Hope all numbers means integers only and sum between 100 and 200 is including 100 and 200.

We know sum of n integers is given by

$S_n=1+2+3+\cdots+n=\frac{n(n+1)}{2}$

So, sum of first 200 numbers, $S_{200}=1+2+3+\cdots+200=\frac{200(200+1)}{2}=20100 And sum of first 99 numbers, S_{99}=1+2+3+\cdots+99=\frac{99(99+1)}{2}=4950$ Hence, sum of all numbers from 100 to 200 ,

$=S_{200}-S_{99}=20100-4950=\mathbf{1 5 1 5 0}$

If it is not including 100 an $\mathrm{d} 200$,

Then required sum $=S_{199}-S_{100}=19900-5050=\mathbf{1 4 8 5 0}$

Hence, the correct answer is 14850.

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