Mathematics 4024 · O Level · Ratio and proportion

Ratio and proportion — practice question

A bag contains red, blue and green balls. The ratio of red to blue is $3:8$. The ratio of green to blue is $2:5$.
(main)[3]

Determine the fraction of the balls that are blue.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Answer: $\frac{40}{71}$” …

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