Foundation June 2017 Paper 1 Q12
12 There are only 7 blue pens, 4 green pens and 6 red pens in a box.
One pen is taken at random from the box.
Write down the probability that this pen is blue. (2)
| Answer | Mark | Notes |
|---|---|---|
| \(\dfrac{7}{17}\) | M1 | for \(\dfrac{a}{17}\) where \(a \ne 7\) but \(\lt 17\) or \(\dfrac{7}{b}\) where \(b \ne 17\) but \(\gt 7\) |
| A1 | oe |