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18% of the fish are perch. How many perch are in the river?
Need help? NoYes
Use the formula Number = Percentage × 10,000.
If 24% of the fish are salmon, calculate the number of salmon.
Multiply 24/100 by the total population.
13% of the fish are eels. How many eels are there?
Multiply 13/100 by the total population (10,000).
What percentage of the fish are not trout?
Subtract the percentage of trout (30%) from 100%.
Combine the percentages for salmon and perch. What proportion do they form?
Add their percentages.
What is the combined number of perch and eels in the river?
Add the populations of perch and eels.
What is the percentage difference between the trout and pike populations?
Subtract the percentage of pike from the percentage of trout.
What is the number difference between the salmon and eels populations?
Subtract the number of eels from the number of salmon.
What is the percentage of fish that are neither salmon nor trout?
Subtract their combined percentage from 100%.
How many more trout are there than perch in the river?
Subtract the number of perch from the number of trout.
What is the ratio of trout to pike in the river?— Please Select —1:11:22:1
Express the trout and pike populations as a ratio: 3000:1500, then simplify.
If 24% of the fish are salmon, what is the ratio of salmon to the total population?— Please Select —24:11:2412:56:2525:6
Express 24% as a ratio: 24:100, then simplify.
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