TMUA 2016 Paper 1 Q6 — Worked Solution

P1·Algebra & Surds·5.0Official · 2016 · Q6

weighted-averagemixture-proportionsrational-arithmetic

P, Q, and R are each mixtures of red and white paint. The percentage by volume of red paint in P is

30%

. The percentage by volume of red paint in Q is

20%

.The mixtures P, Q, and R are combined in the proportion

12 : 5 : 3

respectively. If the resulting mixture contains

25%

by volume of red paint, what percentage by volume of mixture R is red paint?

Discussion

No discussions yet. Stuck, or want to share an approach? Start the first one.