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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
2.1 Ratio - I

  1. A ratio is a way of comparing two quantities.
  2. It is written as 3 to 4 or 3 : 4
  3. It is same as writing fraction. Example: 3/4
  4. The ratio of two quantities expressed is the simplest form of that fraction.
  5. Always make sure the things you are comparing are in the same unit. If not convert one so that they are in the same unit.
Example: Express 1 hour to 1 day as ratio.
Always make sure the things you are comparing are in the same unit.
First convert 1 day to 24 hours
1 hour to 1 day
1 day = 24 hours
1 : 24
Answer 1 : 24

Example: What is the ratio of 21 and 35?
This can be written as 21/35

  1. To find the simplest form, we find the HCF of the given quantities
  2. Factors of 21 are 1, 3, 7, 21
  3. Factors of 35 are 1, 5, 7, 35
  4. HCF is 7.
  5. Divide both 21 and 35 by 7.
  6. The simplest form of this is 3/5.
Answer: 3:5

Directions: Answer the following questions. Also write at least ten examples of your own.
Q 1: Express the ratio 2 feet to 18 inches as a fraction in simplest form.
2 to 3
1 to 3
4 to 3
3 to 4

Q 2: The value of 425:750 in the lowest terms_____.
30 : 17
24 : 15
12 : 21
17 : 30

Q 3: The first term in a ratio is called _____.
precedent
consequent
first term
antecedent

Q 4: The ratio of p:q and r:s is ______.
ps : qr
qs : pr
pq : rs
pr : qs

Q 5: The inverse ratio of A:B is _____.
B : B
A : A
A : B
B : A

Q 6: If x and y are two numbers (y not equal to 0) the ratio x to y is represented as _____.
a : b
y : x
x : y
x : a

Q 7: To find the ratio between two quantities in same units we _____ the first term by the second.
divide
add
ratio
subtract

Q 8: 6ab2:9b2c when expressed in lowest terms is ______.
6a : 4b
2a : 3c
3a : 4c
3c : 2a

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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