Jolly gobs

Each package of jolly gobs has 72 gobs. If one-fourth of the gobs are red and the rest are blue, how many parts were the group divided? How many parts are red?

Correct answer:

n =  2
r =  18
b =  54

Step-by-step explanation:

$n=2$

$$\begin{gathered} n=72 \\ r=\frac{1}{4}\cdot n=\frac{1}{4}\cdot 72=\frac{1\cdot 72}{4}=\frac{72}{4}=18 \end{gathered}$$

$b=n-r=72-18=54$

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