1MA0 Foundation June 2013 Paper 1 Q14
14 Here are the first five terms of a number sequence.
2 7 12 17 22
(a)
(i) Write down the next term in the sequence.
(ii) Explain how you worked out your answer.
(2)(b) 45 is not a term in this number sequence.
Explain why. (1)
Explain why. (1)
| Answer | Mark | Notes |
|---|---|---|
| (i) 27 | 2 | B1 cao |
| (ii) Add 5 | B1 add 5 or states rule is \(5n - 3\) (may be exemplified on diagram) |
| Answer | Mark | Notes |
|---|---|---|
| Reason | 1 | B1 for correct reason Eg all numbers in sequence end in 2 or 7 or continuation of sequence to beyond 45 with statement or 42, 47 with statement |