What is the common difference of the sequence (0.2,0.5,0.8,1.1,\ldots)?
Answer and explanation
Correct answer: 0.3
To find the common difference, subtract a term from the term immediately after it: \(0.5-0.2=0.3\). Checking further, \(0.8-0.5=0.3\), so the common difference is 0.3. The number 0.2 is the first term, not the common difference. Exam tip: find the difference between consecutive terms and verify it with another pair.
Frequently asked questions
What is the correct answer to this question?
0.3
Why is this the correct answer?
To find the common difference, subtract a term from the term immediately after it: \(0.5-0.2=0.3\). Checking further, \(0.8-0.5=0.3\), so the common difference is 0.3. The number 0.2 is the first term, not the common difference. Exam tip: find the difference between consecutive terms and verify it with another pair.
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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