Question

5 point 8. Betty has an aquarium with 27 fish. In the aquarium, 1/3 of the fish are orange, 1/3 of the fish are blue and the rest of the fish are yellow. How many fish in the aquarium are blue?

Answer 1

Answer:

The number of blue fish in the aquarium is;

$9$

Explanation:

Given that Betty has an aquarium with 27 fish and 1/3 of the fish are blue;

$\begin{gathered} \text{Total T = 27} \\ \text{ Fraction of blue fish }f(B)=\frac{1}{3} \end{gathered}$

The number of blue fish can be calculated by multiplying the fraction of blue fish by the total number of fish;

$\begin{gathered} n(B)=f(B)\times T \\ n(B)=\frac{1}{3}\times27 \\ n(B)=9 \end{gathered}$

Therefore, the number of blue fish in the aquarium is;

$9$