What is the sum of all the natural numbers from 1 to 100 ........

Quantitative Aptitiude (CLAT) Average

What is the sum of all the natural numbers from 1 to 100?

5000

5050

6000

5052

Sn =n/2(2a+(n-1)d)
n=100, a=1, d=1
so S100= 100/2(2(1)+(100-1)1)
= 50(2+99) =50(101) =5050
Hence, option 2 is the correct answer.

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