Answer:
Step-by-step explanation:
Alright, lets get started.
Suppose initially there were x Koi in pool.
[tex]\frac{2}{5}[/tex] of Koi were taken away means, number of fish taken away : [tex]\frac{2}{5}x[/tex]
So, remaining Koi will be = [tex]x - \frac{2}{5}x=\frac{3}{5}x[/tex]
There are still b KOi remaining as per question, so
[tex]\frac{3}{5}x=b[/tex]
So, [tex]x=\frac{5}{3}b[/tex]
Means initially there were [tex]\frac{5}{3}b[/tex]Koi.
k goldfish were left in pool.
So number of remaining fish were = [tex]\frac{5}{3}b + k[/tex]
This is the answer:
Hope it will help :)
