Question

What is the answer of this question .....1+2+3+.....+100=?

Answer 1

Step-by-step explanation:

sum of natural Numbers from 1 to n is given by the formula,

Sn = n(n + 1)/2

in your case n = 100

sum = 100(100 + 1)/2 = 50 × 101 = 5050

Answer 2

5050 is the total sum of numbers from 1 to 100.