Higher June 2017 Paper 5 Q13
13
(a) Write \(\dfrac{7}{9}\) as a recurring decimal. [1]
(b) Sally divided a two-digit number by another two-digit number.
Her answer was 3.18181818 ...... .
Her answer was 3.18181818 ...... .
Find two numbers that Sally could have used. [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(0.\dot{7}\) | 1 | Condone poor notation e.g. 0.777…, \(0.\dot{7}\dot{7}\), \(0.7^r\) | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 35 [and] 11 or 70 [and] 22 final answer | 3 | B2 for \(\frac{315}{99}\) or \(3\frac{18}{99}\) Or B1 for \(\frac{18}{99}\) Or M1 for 318.18... or 18.18… seen | For 3 marks, accept in either order B2 implied by answer 315 and 99 |