Question

find the sum of all natural number from 1 to 100.​

Answer 1

HeRe Is Your Ans ⤵

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Sum = N / 2 ( 2A + (N-1)D

Sum = 100 / 2 ( 2 × 1 + 99 × 1

Sum = 50 × 101

Sum = 5050

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Answer 2

the sum of numbers between 1-100

will be 1+2+3.....+97+98+99+100

1. formulae:

sum=n(n+1)/2

answer:

sum=100(100+1)/2

=10100/2

= 5050