4MA0 Foundation June 2015 Paper 2R Q6
6 The circles contain terms in a number sequence.
| 99 | 91 | 83 | 75 | 59 | 51 |
The 5th term and the 8th term are missing.
(a)
(i) Write down the 5th term of the sequence.
(ii) Write down the 8th term of the sequence.
(2)(b) Write down the rule for working out the terms of this sequence. (1)
The 13th term of the sequence is 3
(c) Work out the 14th term of the sequence. (1)
A new sequence is made by adding 5 to each term of the first sequence.
(d) Write down the 13th term of this new sequence. (1)
The sum of the first four terms of the first sequence is 348
(e) Work out the sum of the first four terms of the new sequence. (1)
| Scheme | Marks |
|---|---|
| (i) Answer: 67 | B1 |
| (ii) Answer: 43 | B1 |
| (2) |
Notes
B1: Accept numbers written in circles unless contradicted on the answer lines.
| Scheme | Marks |
|---|---|
| subtract 8 | B1 |
| (1) |
Notes
B1: oe Allow −8 or \(107 - 8n\)
| Scheme | Marks |
|---|---|
| −5 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| 8 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| 368 | B1 |
| (1) | |
| Total 6 marks |
Notes
B1: cao