Question

Kajal has a large fish pond in her backyard one day she caught 20 fish , tagged them and put them back into the pond hoping to this tagged fish to approximate the number of fish in the pond of few hours later she caught 40 fish of which 8 word tagged about how many fish does Kajal have in her pond​

Answer 1

Answer:

Answer is 100

Step-by-step explanation:

Here we can solve it by using the method of persentage

As we all know

at first kajal took 20 fishes and tagged them

She catched next day

= 40 fish

in which tagged are

= 8

the % of tagged is

= 8 × 100/20

= 8 × 100/20 =40 %

that means these 40 are the 40 % of all the fishes present in the pond

now the Total number of fishes

40% = 40

1%. = 1

and. 100%= 100

so the total number of fishes is 100

Answer 2

Answer:

Approximately 100 fishes.

Step-by-step explanation:

In the question,

Let us say that,

Number of Fish in the pond = x

So,

Number of Fish tagged and caught by Kajal = 20

Now,

Attempt 2 :  

Number of Fishes caught = 40

Number of Fishes which were tagged = 8

So,

Ratio of tagged fishes to caught fishes = 8 : 40 = 1 : 5

So,

Initial ratio of tagged fishes to total fishes = 20: x

So,

The ratio should be the same in both cases.

So,

$\frac{20}{x}=\frac{8}{40}\\x=100$

Therefore, we can say that there are approximately 100 fishes in the pond of Kajal.