Question

Tina's aquarium has a capacity of 40 gallons or water. She plans to stock her aquarium with 0.25 inches of fish per quart of capacity. Mollies are 2 inches in length. How many mollies can she have in the aquarium?

Answer 1

The number of mollies fishes in the aquarium is 20 .

Explanation:

Given as :

The capacity of aquarium = 40 gallons

∵ 1 gallon = 4 quart

∴ 40 gallons = 4 × 40 = 160 quart

Now, According to question

0.25 inches of fish required 1 quart capacity

I.e for 1 quart capacity , 0.25 inches fish

So. for 160 quart capacity , 0.25 × 160 = 40 inches fishes

Now the size of mollies fish = 2 inches

Then , number of mollies fish =
`(\textrm total size of fishes)/(\textrm size of mollies fish)`

I.e Number of mollies fish =
`(40)/(2)` = 20

Hence The number of mollies fishes in the aquarium is 20 . Answer