Algebra Puzzle – Challenge 45
Love to tease your brain with math and critical thinking challenges? If so, this is a great math puzzle for you.
Challenge:
The average of 14 numbers is 18 and the average of 18 numbers is 14. What is the average of all 32 numbers?
A- 15
B- 15.5
C- 15.75
D- 16.5
E- 17.5
The Absolute Best Book to Challenge Your Smart Student!
The correct answer is C.
The average of 14 numbers is 18. Therefore, the sum of 14 numbers is 252.
The average of 18 numbers is 14. Therefore, the sum of 18 numbers is 252. The sum of all 32 numbers is 504.
The average of 32 numbers is: 504 ÷ 32 = 15.75The Absolute Best Books to Ace Algebra
Related to This Article
More math articles
- Gender Socialization and Social Structure
- MoGEA Math Flashcards
- How to Use Comparison test for Convergence
- Top 10 ISEE Middle-Level Math Practice Questions
- FREE SHSAT Math Practice Test
- 7th Grade Georgia Milestones Assessment System Math Worksheets: FREE & Printable
- Solving the Unsolvable: How to Master Systems of Non-linear Equations with Elimination
- How to Do Percentage Calculations? (+FREE Worksheet!)
- How to Help Your 5th Grade Student Prepare for the Indiana ILEARN Math Test
- Top 10 Tips to Create an ACCUPLACER Math Study Plan
What people say about "Algebra Puzzle – Challenge 45 - Effortless Math"?
No one replied yet.