0 reads0 ratings0 helpful
If (S_n+S_{n-2}=10000) and (S_n-S_{n-2}=199), what will (S_n) be?
Advertisement
Answer and explanation
Correct answer: (5099.5)
Adding the two equations gives (2S_n=10199), so (S_n=5099.5). Such values also help check the consistency of the question.
Frequently asked questions
What is the correct answer to this question?
(5099.5)
Why is this the correct answer?
Adding the two equations gives (2S_n=10199), so (S_n=5099.5). Such values also help check the consistency of the question.
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.
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
Advertisement