If (a=4) and the next term is (9), what is (d)?
Answer and explanation
Correct answer: 5
In an arithmetic progression, the common difference is d = second term − first term. Here, d = 9 − 4 = 5, so option B is correct. The number 9 is the next term, not the common difference. In an exam, subtract the earlier term from the consecutive term to find d.
Frequently asked questions
What is the correct answer to this question?
5
Why is this the correct answer?
In an arithmetic progression, the common difference is d = second term − first term. Here, d = 9 − 4 = 5, so option B is correct. The number 9 is the next term, not the common difference. In an exam, subtract the earlier term from the consecutive term to find d.
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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