If 20%of a length is 23cm. what the complete lenght

The complete length is 115 cm.

Step-by-step explanation:

Given:

If 20%of a length is 23 cm.

Now, to find the complete length.

Let, the complete length be .

So, according to question:

20% of = 23 cm

Dividing both sides by 0.20 we get :

Therefore, the complete length is 115 cm.

Let the number of frogs in the Blue Pond be x
Blue Pond = x 
There were 26 more frogs in Green Pond than in Blue Pond
Green Pond = x + 26
There were 80 frogs altogether
x + x + 26 = 80
2x + 26 = 80
2x = 80 - 26
2x = 54
x = 27
x + 26 = 27 + 26 = 53

There were 53 frogs in the Green Pond originally.