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Class 9 Mathematics Sequences and Progressions Sum of first n natural numbersExpertLevel 61

Find the sum of natural numbers from (251) to (300).

Answer and explanation

Correct answer: (13775)

The sum is (S_{300}-S_{250}=45150-31375=13775). The (S_b-S_{a-1}) method is fast for large intervals.

Tags

sequencesprogressionsnatural-numbersrange-sum

Frequently asked questions

What is the correct answer to this question?

(13775)

Why is this the correct answer?

The sum is (S_{300}-S_{250}=45150-31375=13775). The (S_b-S_{a-1}) method is fast for large intervals.

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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