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Question
The sum of first ten natural number is ______.
Options
55
155
65
110
MCQ
Fill in the Blanks
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Solution
The sum of first ten natural number is 55.
Explanation:
Sum = `(n(n + 1))/2`
Here, n = 10
Sum = `(10(10 + 1))/2`
= `(10 xx 11)/2 = 55`
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