1) There are 200 fish in an aquarium. Of which 1% are blue, the rest are yellow. Howmany yellow fish have to be removed to make the number of blue fish equal 2% of theentire amount of fish?A) 2 B) 4 C) 20 D) 50 E) 100

There were 200 Fishes in an aquarium, 99% of which were red. How many red fishes must be removed to make the percentage of red fishes 98%

A scientist counts 80 fishes in a pond. He marks them all with a UV pen. The next day he counts 60 fish, 24 of which have already been marked with his UV pen. Use this information to estimate the total fish in the pond:

A pond contains two kinds of fish, trout and bass, of which 20% are bass and 80% are trout. If you catch 5 fish at random from this pond, which would you expect to catch?0 bass and 5 trout1 bass and 4 trout4 bass and 1 trout5 bass and 0 trout

In the Tide Pool tank at the Atlantic Aquarium, there are 10 crustaceans and 25 fish. The Deep Blue tank has the same ratio of crustaceans to fish. There are 50 crustaceans in the Deep Blue tank.How many fish are in the Deep Blue tank?

Answer the questions below.Note that a change can be an increase or a decrease.For an increase, use a positive number.For a decrease, use a negative number.(a)Laura pumped 42 gallons of water out of her pool. This was done over a period of 6 minutes at a constant rate. What was the change in the amount of water in the pool each minute?7gallons(b)Carlos added 8 fish to his pond each day for 72 days. What was the total change in the number of fish in the pond?576fish