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If (1+2+3+\cdots+n=1176), what is the value of (n)?
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Answer and explanation
Correct answer: (48)
(S_{48}=\frac{48\times49}{2}=1176), so (n=48). Verify the answer by substituting it back in the formula.
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What is the correct answer to this question?
(48)
Why is this the correct answer?
(S_{48}=\frac{48\times49}{2}=1176), so (n=48). Verify the answer by substituting it back in the formula.
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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