What is the sum of the first (4) natural numbers?
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Answer and explanation
Correct answer: 10
The first 4 natural numbers are 1, 2, 3, and 4. Therefore, their sum is 1 + 2 + 3 + 4 = 10. The value 9 is only the sum of 2 + 3 + 4, so it is not correct. Exam tip: The sum of the first n natural numbers is n(n+1)/2.
Frequently asked questions
What is the correct answer to this question?
10
Why is this the correct answer?
The first 4 natural numbers are 1, 2, 3, and 4. Therefore, their sum is 1 + 2 + 3 + 4 = 10. The value 9 is only the sum of 2 + 3 + 4, so it is not correct. Exam tip: The sum of the first n natural numbers is n(n+1)/2.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: Sum of first n natural numbers.
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