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Class 9 Mathematics Sequences and Progressions Sum of first n natural numbersEasyLevel 64

A list has numbers from (1) to (33). What is their sum?

Answer and explanation

Correct answer: (561)

By the formula, (S_{33}=\frac{33\cdot34}{2}=561). If the list starts from (1), use the natural-number sum directly.

Tags

sequencesprogressionsnatural-numbersword-problem

Frequently asked questions

What is the correct answer to this question?

(561)

Why is this the correct answer?

By the formula, (S_{33}=\frac{33\cdot34}{2}=561). If the list starts from (1), use the natural-number sum directly.

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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