Intermediate June 2023 Unit 2 Q2
2.
(a) Which one of the following fractions can be written as a recurring decimal?
Circle your answer. [1]
Circle your answer. [1]
\(\dfrac{1}{2}\) \(\dfrac{1}{4}\) \(\dfrac{1}{6}\) \(\dfrac{1}{8}\) \(\dfrac{1}{10}\)
(b) Which three numbers from the list below are prime numbers? [2]
27 31 35 39 43 47 51 55
The three prime numbers are:
…………… , …………… and ……………
(c) \(81 = 3^{n}\).
Write down the value of \(n\). [1]
\(n\) = ……………
| Scheme | Marks | Comments |
|---|---|---|
| \(\dfrac{1}{6}\) | B1 |
| Scheme | Marks | Comments |
|---|---|---|
| 31 43 47 | B2 | Answer space takes precedence. Award B2 for all three primes. Accept in any order. Award B1 for two correct primes. If no answers given on answer spaces, and numbers given are circled/clearly indicated, award B1 for one of the following:
|
| Scheme | Marks | Comments |
|---|---|---|
| (\(n\) =) 4 | B1 | Note: Award B1 for a correct embedded answer e.g. \(3^{4}\) = 81, BUT B0 if contradicted by \(n \neq\) 4. |