O level Percentage Ratio and Proportion Quiz 1

16 Questions

Quiz Description

In this first quiz on percentage, ratio, and proportion, we will begin by studying their applications in mathematical problems. They can also be applied in physics and even in real-life situations. This section of mathematics has to deal with more practical applications. If you are facing problems with this, don’t bother. This quiz will aid you in understanding it well.

A percentage can be defined as a number expressed as a fraction of 100. It is usually denoted with the sign ‘%’. Let’s take 50% as an example. 50% means 50/100 which is ½ of a hundred. Percentages are dimensionless, meaning they have no unit. On the other hand, a ratio refers to the number of times a number contains another. For example, if in a bowl we have eight apples and six bananas, the ratio of apples to bananas is eight to six. This is usually written as 8:6. This ratio is equivalent to 4:3. Ratios can also be considered as an ordered pair of numbers. Finally, two varying quantities are said to be proportional if they are multiplicatively connected to a constant. The value of this constant is known to be the constant of proportionality. For example, F and a are proportional in the equation F = ma, where m is the constant of proportionality.

Are you determined to pass your maths exams? Answer this, and other mathematics quizzes that are available here. Get yourself prepared for the job. Good luck. 

1:

 The unit of ratio is 


Correct
  • 1:
    cm
  • 2:
    inches
  • 3:
    it has no unit
  • 4:
    radians
2:

  If two quantities are related in such a way that increase in 1 quantity causes increase in other quantity, then this variation is said to be 


Correct
  • 1:
    joint proportion
  • 2:
    extreme proportion
  • 3:
    direct proportion
  • 4:
    inverse proportion
3:

  An Airplane carries 500 passengers, 45% are men, 20% are children. The number of women in the airplane is 


Correct
  • 1:
    175
  • 2:
    150
  • 3:
    166
  • 4:
    180
4:

 A shoe costs a cobbler $400. He sells it for $520. What percentage of profit did he earn ? 


Correct
  • 1:
    0.25
  • 2:
    0.3
  • 3:
    0.35
  • 4:
    0.45
5:

  If 3⁄4 of the employees in an office have ca$How many in every 100 have a car ? 


Correct
  • 1:
    0.75
  • 2:
    0.3
  • 3:
    0.5
  • 4:
    0.45
6:

 The decimal form of 48 2%⁄3% up to 3 decimals is 


Correct
  • 1:
    4.87
  • 2:
    48.7
  • 3:
    0.487
  • 4:
    0.00487
7:

  If 2 ratios a:b and c:d are equal then we can write it as 


Correct
  • 1:
    a : b ⁄ c : d
  • 2:
    a : b = c : d
  • 3:
    a + b = c + d
  • 4:
    a : c = d : b
8:

  In ratio a : b, the first term a is called 


Correct
  • 1:
    antecedent
  • 2:
    extreme
  • 3:
    consequent
  • 4:
    mean
9:

  In what ratio 50 m² be decreased to 25 m² 


Correct
  • 1:
    1 : 5
  • 2:
    1 : 2
  • 3:
    2 : 1
  • 4:
    5 : 3
10:

 14 buffaloes consume 63kg hay in 18 days. The number of buffaloes to eat 770kg of hay in 28 days should be 


Correct
  • 1:
    120 cows
  • 2:
    100 cows
  • 3:
    115 cows
  • 4:
    110 cows
11:

  The ratio of 10 dollars each to 84 dollars per dozen is 


Correct
  • 1:
    7 : 8
  • 2:
    8 : 7
  • 3:
    42 : 5
  • 4:
    5 : 42
12:

 Two angles in a triangle are 63 ° and 57 °. The ratio of 3rd angle to the first 2 should be 


Correct
  • 1:
    3 : 4
  • 2:
    2 : 1
  • 3:
    1 : 2
  • 4:
    5 : 6
13:

  If two quantities are related in such a way that when 1 quantity increases, the other quantity decreases, then this variation is said to be 


Correct
  • 1:
    extreme proportion
  • 2:
    joint proportion
  • 3:
    direct proportion
  • 4:
    inverse proportion
14:

 The price of 20 books is $1000. The price of 45 such books should be  

  1. 2250

Correct
  • 1:
    4540
  • 2:
    2250
  • 3:
    1500
  • 4:
    1750
15:

 The decimal form of 25 1⁄3 is 


Correct
  • 1:
    0.00253
  • 2:
    2.53
  • 3:
    0.253
  • 4:
    253
16:

 Ali spends $30 everyday, but on Sunday, he spends $10 only. The ratio of amount spent on Sunday to everyday should be 


Correct
  • 1:
    3 : 1
  • 2:
    1 : 3
  • 3:
    3 : 5
  • 4:
    2 : 1

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O level Percentage Ratio and Proportion Quiz 1
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