Ratios & Proportions
Student Name *
Email
Class Period *
1. The ratio of the number of boys to the number of girls at school is 4:5 *
What is the fraction of boys to all students? Write your answer as ratio in simplest form.
2. The ratio of the number of boys to the number of girls at school is 4:5 *
If there are 120 boys, how many students are there altogether?
3. Hippos sometimes get to eat pumpkins as a special treat. *
If 3 hippos eat 5 pumpkins, how many pumpkins per hippo is that? **NO decimals in your answer. Write decimals as mixed numbers**
4. Imagine that 12 goats got into a dumpster behind a pizza parlor and ate 3 pizzas. *
How many goats per pizza would that be? Write your answer as ratio in simplest form.
5. The grocery store sells beans in bulk. The grocer's sign above the beans says, 5 pounds for \$4. Alberto said, “The ratio of the number of dollars to the number of pounds is 4:5. That's \$0.80 per pound.” Beth said, "The sign says the ratio of the number of pounds to the number of dollars is 5:4. That's 1.25 pounds per dollar." *
Who is correct?
6. Claude needs two pounds of beans to make soup. Show Claude how much money he will need. *
Use the ratio of "5 pounds for \$4" to solve. Write your answer in money form.
7. A mixture of concrete is made up of sand and cement in a ratio of 5 : 3 and makes 8 cubic feet of concrete mix. *
How many cubic feet of each are needed to make 160 cubic feet of concrete mix? Write your answer as a ratio of sand to cement.