Which is the correct bar notation of (0.670808080\ldots)?
Answer and explanation
Correct answer: \(0.67\overline{08}\)
After 67, the digits 08, 08, 08, \ldots repeat. Thus, 67 is the non-repeating part and 08 is the repeating block, so the notation is \(0.67\overline{08}\). In \(0.670\overline{8}\), only 8 repeats, so it does not show the repeated zeros. Exam tip: Write the decimal digits in groups first and identify the shortest block that repeats.
Frequently asked questions
What is the correct answer to this question?
\(0.67\overline{08}\)
Why is this the correct answer?
After 67, the digits 08, 08, 08, \ldots repeat. Thus, 67 is the non-repeating part and 08 is the repeating block, so the notation is \(0.67\overline{08}\). In \(0.670\overline{8}\), only 8 repeats, so it does not show the repeated zeros. Exam tip: Write the decimal digits in groups first and identify the shortest block that repeats.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Decimal representation.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
