1MA0 Foundation November 2016 Paper 1 Q5
5 Here is a sequence of patterns made with grey squares and with white squares.
(a) In the space below, draw pattern number 4 (1)
A pattern in the sequence has 10 grey squares.
(b) How many white squares does the pattern have? (1)
A pattern in the sequence has a total of 45 squares.
(c)
(i) How many grey squares does the pattern have?
(ii) Explain how you found your answer. (2)
| Answer | Mark | Notes |
|---|---|---|
 | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| 20 | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| (i) 15 (ii) Response | 2 | (i) B1 cao (ii) B1 for “divide 45 by 3” or “divide 30 by 2” or “a third of the squares are grey” oe |