Find the sum of the first 25 odd natural numbers

Asked by admin @ in Math viewed by 354 People

Find the sum of the first 25 odd natural number​

Answered by admin @


Answer:

625

The number series 1, 3, 5, 7, 9, . . . . , 49. Therefore, 625 is the sum of first 25 odd numbers.

Step-by-step explanation:

step 1 Address the formula, input parameters & values.

Input parameters & values:

The number series 1, 3, 5, 7, 9, .  .  .  .  , 49.

The first term a = 1

The common difference d = 2

Total number of terms n = 25


step 2 apply the input parameter values in the AP formula

Sum = n/2 x (a + Tn)

= 25/2 x (1 + 49)

= (25 x 50)/ 2

= 1250/2

1 + 3 + 5 + 7 + 9 + .  .  .  .   + 49 = 625


Therefore, 625 is the sum of first 25 odd numbers.


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