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Class 9 Mathematics Sequences and Progressions Sum of first n natural numbersExpertLevel 59

If (S_y=15931), what will be the value of (S_{y+3})?

Answer and explanation

Correct answer: (16435)

(S_{178}=15931), so (S_{181}=15931+179+180+181=16471). To move three steps ahead, add the next three terms.

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mathsequencesnatural-numberssum

Frequently asked questions

What is the correct answer to this question?

(16435)

Why is this the correct answer?

(S_{178}=15931), so (S_{181}=15931+179+180+181=16471). To move three steps ahead, add the next three terms.

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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