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If (a=5) and the second term is (17), what is (d)?
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Answer and explanation
Correct answer: 12
The second term of an AP is \(a_2=a+d\). Here, \(17=5+d\), so \(d=17-5=12\). Therefore, 12 is correct. Note that 17 is the second term, not the common difference. Exam tip: find \(d\) by subtracting a term from the following term.
Frequently asked questions
What is the correct answer to this question?
12
Why is this the correct answer?
The second term of an AP is \(a_2=a+d\). Here, \(17=5+d\), so \(d=17-5=12\). Therefore, 12 is correct. Note that 17 is the second term, not the common difference. Exam tip: find \(d\) by subtracting a term from the following term.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Arithmetic Progressions (AP). Topic: Introduction to APs and common difference..
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