Back to OCR Maths Higher June 2018 Paper 6 Home
​Q2: Answers – Paper 6 – June 2018
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A box contains only red, blue and green pens.
The ratio of red pens to blue pens is 5 : 9.
The ratio of blue pens to green pens is 1 : 4.

​Calculate the percentage of pens that are blue. 
Question
2) A box contains only red, blue and green pens.
The ratio of red pens to blue pens is 5 : 9.
The ratio of blue pens to green pens is 1 : 4.

​Calculate the percentage of pens that are blue. 
[4 marks]