Flower garden

In the mr elliots garden 1/8 of the flowers are red 1/4 of them are purple and 1/4 of the remaning flowers are pink. If there is 128 flowers how many of them are pink?

Correct answer:

p =  20

Step-by-step explanation:

$$\begin{gathered} n=128 \\ r=\frac{1}{8}\cdot n=\frac{1}{8}\cdot 128=16 \\ x=\frac{1}{4}\cdot n=\frac{1}{4}\cdot 128=32 \\ p=\frac{1}{4}\cdot (n-r-x)=\frac{1}{4}\cdot (128-16-32)=20 \end{gathered}$$

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