What will be the sum of all natural numbers from 1 to 20?
Soln Date / Update:-21-Jul-2025 06:09AM
Solution:-
What will be the sum of all natural numbers from 1 to 20?
(A) 210 (B) 201
(C) 102 (D) 220
Soln:-
Sum of Natural Number = n ( n + 1 ) / 2
= 20 ( 20 + 1 ) / 2
= ( 20 * 21 ) / 2
= 420 / 2
= 210 Ans.
