Question

The sum of first 6 counting numbers is the 6 th _______ number.

Answer 1

Answer:

For example, if we want to find the sum of the first six natural numbers: 1, 2, 3, 4, 5, 6, we will replace 'n' with 6 (the total number of terms) and solve the formula. Sum= n(n + 1)/2. 6(6+1)/2 = 42/2 = 21. We get 21 as the answer