If (a=2) and (d=5), what are the first three terms?
Answer and explanation
Correct answer: (2, 7, 12)
In an arithmetic progression, the first term is \(a=2\) and the common difference is \(d=5\). Add 5 successively: \(2\), \(2+5=7\), and \(7+5=12\). Therefore, the correct sequence is (2, 7, 12). Option A does not maintain a common difference of 5. Exam tip: start with the first term and add the common difference to obtain each next term.
Frequently asked questions
What is the correct answer to this question?
(2, 7, 12)
Why is this the correct answer?
In an arithmetic progression, the first term is \(a=2\) and the common difference is \(d=5\). Add 5 successively: \(2\), \(2+5=7\), and \(7+5=12\). Therefore, the correct sequence is (2, 7, 12). Option A does not maintain a common difference of 5. Exam tip: start with the first term and add the common difference to obtain each 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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