Ratios, Rates, And Proportions

10 Questions | By Poduchn | Last updated: Jul 30, 2011 | Total Attempts: 1111

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TEST TOMORROW! Here is some practice! WORK THEM OUT ON ANOTHER PIECE OF PAPER! Do NOT make GUESSES.

Questions and Answers

1.

Write the ratio as a fraction in simplest form. 28 to 12
- A.
  
  3/7
- B.
  
  14/6
- C.
  
  7/3
- D.
  
  2/1
2.

Write the ratio as a fraction in simplest form.8 meters : 240 centimeters
- A.
  
  1 / 30
- B.
  
  10 / 3
- C.
  
  800 / 240
- D.
  
  8 / 240
3.

Megan traveled to her grandma's house, which is 200 miles away. It took her about 5 hours to get there. What was her average speed in miles per hour?
- A.
  
  40 miles per hour
- B.
  
  200/5 miles per hour
- C.
  
  .025 miles per hour
- D.
  
  4 miles per hour
4.

Cassie and her friends ate 2 pizzas in 10 minutes. What is the rate per minute?
- A.
  
  5 pizzas per minute
- B.
  
  .5 pizzas per minute
- C.
  
  1 pizza per minute
- D.
  
  .2 pizzas per minute
5.

Which box of cereal is the better buy?
- A.
  
  $2.50 for 12 oz.
- B.
  
  $3.60 for 18 oz.
- C.
  
  $4.95 for 24 oz.
6.

Do the ratios 15/4 and 26/7 form a proportion?
- A.
  
  Yes, they're equal!
- B.
  
  No, they're not!
7.

Solve the proportion:45 / 5 = s / 7
- A.
  
  S = 63
- B.
  
  S = 32
- C.
  
  S = 49
- D.
  
  S = 70
8.

An 8 oz. glass of orange juice contains 72 milligrams of vitamin C. If I wanted 60 milligrams if vitamin C, how many oz. of juice would I need to drink?
- A.
  
  6 2/3 ounces of juice
- B.
  
  9.6 ounces of juice
- C.
  
  540 ounces of juice
9.

There is a recipe for cake that calls for 4 1/4 cups of flour. If this recipe serves 6 people, then how much flour is needed to serve a party of 14 people? Round to the nearest tenth.
- A.
  
  10.5 cups of flour
- B.
  
  19.7 cups of flour
- C.
  
  9.9 cups of flour
- D.
  
  1.8 cups of flour
10.

How many dogs are in the dog park if there are 24 people, and there are 2 dogs for every 3 people?
- A.
  
  18 dogs
- B.
  
  16 dogs
- C.
  
  6 dogs
- D.
  
  36 dogs