If (a=3) and (d=8), what are the first three terms?
Answer and explanation
Correct answer: (3, 11, 19)
In an arithmetic progression, the first term is \(a=3\) and the common difference is \(d=8\). So, the second term is \(3+8=11\), and the third term is \(11+8=19\). Hence, the first three terms are \((3, 11, 19)\). In option A, 8 has not been added to 3 to obtain the second term. Exam tip: check each successive term by adding \(d\).
Frequently asked questions
What is the correct answer to this question?
(3, 11, 19)
Why is this the correct answer?
In an arithmetic progression, the first term is \(a=3\) and the common difference is \(d=8\). So, the second term is \(3+8=11\), and the third term is \(11+8=19\). Hence, the first three terms are \((3, 11, 19)\). In option A, 8 has not been added to 3 to obtain the second term. Exam tip: check each successive term by adding \(d\).
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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