The sum of first 100 natural number is ?
(i) 5055
(ii) 1010
(iii) 5050
(iv) 5000
Answers
Answered by
1
Answer:
5050
Step-by-step explanation:
et S be the required sum.
Therefore, S = 1 + 2 + 3 + 4 + 5 + .................... + 100
Clearly, it is an Arithmetic Progression whose first term = 1, last term = 100 and number of terms = 100.
Therefore, S = 1002 (100 + 1), [Using the formula S = n2(a + l)]
= 50(101)
= 5050
Therefore, the sum of first 100 natural numbers is 5050.
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Answered by
3
Answer:
the sum of first 100 natural no. is 5050
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