If (a_n=7n), what is the sixth term?
Answer and explanation
Correct answer: 42
For the sixth term, substitute \(n=6\) in the formula: \(a_6=7\times6=42\). Therefore, 42 is the correct answer. The value 49 would be obtained for \(n=7\), so it is the seventh term. Exam tip: In an nth-term question, carefully substitute the required term number into the formula.
Frequently asked questions
What is the correct answer to this question?
42
Why is this the correct answer?
For the sixth term, substitute \(n=6\) in the formula: \(a_6=7\times6=42\). Therefore, 42 is the correct answer. The value 49 would be obtained for \(n=7\), so it is the seventh term. Exam tip: In an nth-term question, carefully substitute the required term number into the formula.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: nth term.
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