4400 Higher November 2005 Paper 4 Q1
1 \(A = \{\text{Prime numbers between 10 and 16}\}\)
\(B = \{\text{Multiples of 3 between 10 and 16}\}\)
(a) List the members of \(A \cup B\). (2)
(b) What is \(A \cap B\)? (1)
(c) Is it true that \(11 \in B\)?
Explain your answer. (1)
Explain your answer. (1)
| Scheme | Marks |
|---|---|
| 11, 12, 13, 15 | B2 |
| (2) |
Notes
one omission B1
one extra prime or mult of 3: B1
| Scheme | Marks |
|---|---|
| Ø or empty set or nothing oe | B1 |
| (1) |
Notes
B1: not “0” or “A intersection B”
| Scheme | Marks |
|---|---|
| No; 11 isn’t a multiple of 3 | B1 |
| (1) | |
| (4 marks) |