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Ratios Quiz for Grade 6

10 math questions on ratios with answers, written for Grade 6. Use it as it is, change any question, print it with an answer key, or give it online and let it grade itself.

1.
What is the ratio of 12 apples to 4 oranges? (Multiple choice)
  1. 1 to 3
  2. 12 to 4
  3. 4 to 12
  4. 3 to 1
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3 to 1

Dividing both numbers by 4 simplifies the ratio to 3 to 1.
2.
If the ratio of cats to dogs is 5 to 2, how many cats are there if there are 14 dogs? (Multiple choice)
  1. 10
  2. 35
  3. 28
  4. 7
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35

Multiply 5/2 by 14 dogs to find 35 cats.
3.
A ratio compares two quantities by division. (True or false)
  1. True
  2. False
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True

Ratios express how many times one quantity contains another by dividing them.
4.
The ratio 8:12 can be simplified to _____:3. (Fill in the blank)
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2

Dividing both terms by 4 simplifies 8:12 to 2:3.
5.
Name the term that describes the relationship between two numbers showing how many times one value contains or is contained within the other. (Identification)
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ratio

A ratio compares two quantities by division.
6.
Which of the following ratios is equivalent to 9:12? (Multiple choice)
  1. 6:9
  2. 12:9
  3. 4:3
  4. 3:4
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3:4

Dividing both terms by 3 gives the equivalent ratio 3:4.
7.
If the ratio of boys to girls in a class is 3 to 5, what fraction of the class are boys? (Multiple choice)
  1. 3/5
  2. 5/8
  3. 5/3
  4. 3/8
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3/8

Total parts are 3 + 5 = 8; boys are 3 parts out of 8.
8.
Ratios can only compare quantities with the same units. (True or false)
  1. True
  2. False
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False

Ratios can compare different units, like miles to hours.
9.
Match each ratio with its simplified form. (Matching type)
1. 10:15
A. 5:2
2. 18:24
B. 3:4
3. 25:10
C. 2:1
4. 14:7
D. 2:3
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1 = 2:3; 2 = 3:4; 3 = 5:2; 4 = 2:1

Each ratio is simplified by dividing both terms by their greatest common divisor.
10.
Give three ways to simplify the ratio 16:24. (Enumeration)
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4:6, 2:3, 8:12

These are correct simplified forms or intermediate simplifications of the ratio.