Question

sum of 1 to 40 natural no​

Answer 1

Answer:

820 will be the sum of all the positive no. in the series upto 40.

HOPE it HELPED!!!

Answer 2

Answer:

820

Step-by-step explanation:

It can be solved by using the formula Sn =

$\frac{n}{2} (2n + (n - 1)d)$