Find sum of first 123 odd natural numbers.
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Answered by
2
Answer:
Therefore, 15129 is the sum of first 123 odd numbers.
Step-by-step explanation:
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Answered by
1
Answer:
15129
Step-by-step explanation:
When the number series 1, 3, 5, 7, 9, . . . . , 245.
The first term a = 1
The common difference d = 2
Total number of terms n = 123
apply the input parameter values in the AP formula
Sum = n/2 x (a + Tn)
= 123/2 x (1 + 245)
= (123 x 246)/ 2
= 30258/2
1 + 3 + 5 + 7 + 9 + . . . . + 245 = 15129
Therefore, 15129 is the sum of first 123 odd numbers.
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