Question

without adding, find the sum of first 50 odd numbers​

Answer 1

Answer:

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Answer 2

Answer:

The number series 1, 3, 5, 7, 9, . . . . , 99. Therefore, 2500 is the sum of first 50 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, .  .  .  .  , 99.

The first term a = 1

The common difference d = 2

Total number of terms n = 50

step 2: apply the input parameter values in the AP formula

Sum = n/2 x (a + Tn)

= 50/2 x (1 + 99)

= (50 x 100)/ 2

= 5000/2

1 + 3 + 5 + 7 + 9 + .  .  .  .   + 99 = 2500

Therefore, 2500 is the sum of first 50 odd numbers

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