Question

Sam's two new aquariums each hold exactly 200 gallons of water. One aquarium will hold small fish and the other will hold large fish. Now he needs new fish for his aquariums.

•He will buy 5 small fish for every 10 gallons of water in the aquarium.
•He will buy 8 large fish for every 40 gallons of water in the aquarium.

What is the total number of fish Sam will have? What will be the ratio of Sam's small fish to large fish? Show or explain the steps you used to solve this problem.

Answer 1

In the 1st one he will have 100 small fishes. 200/10=20. 20x5=100
In the 2nd one he will have 40 large fishes. 200/40=5. 5x8=40
Sam will have a total of 140 fishes. 100+40=140
Ratio=40/100=4:10