1MA0 Foundation June 2016 Paper 2 Q11
11 Here is a sequence of patterns made with white squares and grey rectangles.

(a) In the space below, draw pattern number 4 (1)
(b) How many grey rectangles are there in pattern number 8? (1)
Sue says,
“There is a pattern in the sequence with exactly 50 white squares.”
(c) Is Sue right?
You must give a reason for your answer. (1)
You must give a reason for your answer. (1)
A pattern in the sequence has exactly 20 grey rectangles.
(d) How many white squares does the pattern have? (1)
| Answer | Mark | Notes |
|---|---|---|
| drawing | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| 9 | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| Yes (supported) | 1 | C1 for Yes with reason eg “the number of squares is always even (and 50 is even)” oe |
| Answer | Mark | Notes |
|---|---|---|
| 38 | 1 | B1 cao |