Rates And Ratios Pretest

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By C_mcgarry
C
C_mcgarry
Community Contributor
Quizzes Created: 1 | Total Attempts: 151
| Attempts: 151
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/10 Questions

    Convert 3.6km to m.

Please wait...
About This Quiz

The 'Rates and Ratios Pretest' assesses foundational mathematics skills, focusing on unit conversions, simplifying fractions, and decimal rounding. This quiz is designed to evaluate and enhance learners' understanding of basic mathematical concepts and their practical applications.

Rates And Ratios Pretest - Quiz

Quiz Preview

  • 2. 

    3.899 rounded to 2 decimal places is _____

    Explanation
    When rounding a number to 2 decimal places, we look at the digit in the third decimal place. If this digit is 5 or greater, we round up the second decimal place, and if it is less than 5, we leave the second decimal place as it is. In this case, the digit in the third decimal place is 9, which is greater than 5. Therefore, we round up the second decimal place to 0, resulting in 3.90. Additionally, 3.9 is also a valid answer as it is the rounded version of 3.899 to 1 decimal place.

    Rate this question:

  • 3. 

    If 2/3 = 8/x, what is x?

    Explanation
    The given equation states that the fraction 2/3 is equal to 8 divided by x. To find the value of x, we can cross multiply. By multiplying 2 and x, we get 2x, and by multiplying 3 and 8, we get 24. Therefore, the equation becomes 2x = 24. To isolate x, we divide both sides of the equation by 2, resulting in x = 12. Hence, the value of x is 12.

    Rate this question:

  • 4. 

    30% of 150 is ______

    Explanation
    To find 30% of a number, we multiply the number by 0.30. In this case, 30% of 150 is calculated as 150 * 0.30 = 45. Therefore, the answer is 45.

    Rate this question:

  • 5. 

     2 1/7 as an improper fraction is 23/7

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The given statement is false. To convert a mixed number to an improper fraction, we multiply the whole number by the denominator of the fraction and add the numerator. In this case, 2 multiplied by 7 is 14, and adding 1 gives us 15. So, 2 1/7 as an improper fraction is 15/7, not 23/7.

    Rate this question:

  • 6. 

    Convert 2000mm to cm

    • 20cm

    • 200cm

    • 2cm

    • 2m

    Correct Answer
    A. 200cm
    Explanation
    To convert mm to cm, we need to divide the value in mm by 10. In this case, we have 2000mm, so dividing it by 10 gives us 200cm. Therefore, the correct answer is 200cm.

    Rate this question:

  • 7. 

    Simplify the following: 36/48

    • 18/24

    • 9/12

    • 3/4

    Correct Answer
    A. 3/4
    Explanation
    The given expression can be simplified by dividing both the numerator and denominator by their greatest common divisor, which in this case is 12. Simplifying each fraction step by step, we get 36/48 = 3/4. Therefore, the answer is 3/4.

    Rate this question:

  • 8. 

    If x/2 = 21/6, what is x?

    • 3

    • 1

    • 7

    Correct Answer
    A. 7
    Explanation
    The equation x/2 = 21/6 can be simplified by multiplying both sides by 2, resulting in x = 21/3. Simplifying further, we find that x equals 7.

    Rate this question:

  • 9. 

    0.52517 rounded to 2 decimal places is:

    • 0.53

    • 0.52

    Correct Answer
    A. 0.53
    Explanation
    The number 0.52517, when rounded to 2 decimal places, would be 0.53. This is because the digit in the third decimal place, 5, is greater than or equal to 5, so it causes the digit in the second decimal place, 2, to be rounded up to 3.

    Rate this question:

Quiz Review Timeline (Updated): Apr 24, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 24, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • May 21, 2012
    Quiz Created by
    C_mcgarry
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.