What is the Sum of First 850 Odd Numbers?
How to Find the Sum of First 850 Odd Numbers?
The below workout with step by step calculation shows how to find what is the sum of first 850 odd numbers by applying arithmetic progression. It's one of the easiest methods to quickly find the sum of given number series.
step 1 Input Parameters and values:
The number series 1, 3, 5, 7, 9, . . . . , 1699.
The first term a = 1
The common difference d = 2
Total number of terms n = 850
step 2 apply the input parameter values in the AP formula
Sum = n/2 x (a + Tn)
= 850/2 x (1 + 1699)
= (850 x 1700)/ 2
= 1445000/2
1 + 3 + 5 + 7 + 9 + . . . . + 1699 = 722500
Therefore, 722500 is the sum of first 850 odd numbers.