If two consecutive terms of an arithmetic progression are (18) and (25), what is the common difference?
Answer and explanation
Correct answer: 7
In an arithmetic progression, the common difference is the difference between two consecutive terms. Here, the second term is 25 and the first term is 18, so the common difference is 25 - 18 = 7. The value 43 is the sum of the terms, not their difference. Exam tip: use next term − previous term.
Frequently asked questions
What is the correct answer to this question?
7
Why is this the correct answer?
In an arithmetic progression, the common difference is the difference between two consecutive terms. Here, the second term is 25 and the first term is 18, so the common difference is 25 - 18 = 7. The value 43 is the sum of the terms, not their difference. Exam tip: use next term − previous 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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