If the second term of an arithmetic progression is (18) and the first term is (11), what will (d) be?
Answer and explanation
Correct answer: 7
In an arithmetic progression, the common difference is d = a₂ − a₁. Here, a₁ = 11 and a₂ = 18, so d = 18 − 11 = 7. Therefore, the correct answer is 7. The value 6 is incorrect because it is not the difference between 11 and 18. Exam tip: To find the common difference, subtract an earlier term from the next 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 d = a₂ − a₁. Here, a₁ = 11 and a₂ = 18, so d = 18 − 11 = 7. Therefore, the correct answer is 7. The value 6 is incorrect because it is not the difference between 11 and 18. Exam tip: To find the common difference, subtract an earlier term from the next 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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