Ratio, Proportion and Percentages Puzzle -Critical Thinking 9
Math puzzles are a great way to engage students in developing critical thinking skills. This math puzzle is an educational activity for practicing children’s math skills. For additional educational resources, . For additional educational resources
Challenge:
The average of five numbers is 11 and the average of eight numbers is 7.75. What is the average of these 13 numbers?
The Absolute Best Book to Challenge Your Smart Student!
The correct answer is 9.
Pre-Algebra for Beginners 2026 The Ultimate Step by Step Guide to Preparing for the Pre-Algebra Test
Original price was: $27.99.$17.99Current price is: $17.99.Satisfied 92 Students
The average of five numbers is 11. Therefore, their sum is:
5 × 11 = 55
The average of eight numbers is 7.75. Therefore, their sum is:
8 × 7.75 = 62
The sum of all 13 numbers is 55 + 62 = 117
Therefore, the average of these 13 numbers is:
117 ÷ 13 = 9
The Absolute Best Books to Ace Algebra
Related to This Article
More math articles
- Patterns of Intergroup Relations
- 10 Most Common 4th Grade Georgia Milestones Assessment System Math Questions
- How to Use Right-Triangle Trigonometry
- Binary, Decimal & Hexadecimal Converter (Free, with Steps)
- How To Solve Word Problems for Explaining Fractions as Division
- Embarking on an Adventure: How to Solve Word Problems Involving Percents of Numbers and Percent Equations
- What is the Best Calculator for the PSAT Test?
- The Best Grade 5 Math Book for Pennsylvania Students
- A Comprehensive Guide to Grasping the Essence of Absolute Value Functions
- Estimating Expressions with Irrational Numbers: Complete Guide with Video and Examples
What people say about "Ratio, Proportion and Percentages Puzzle -Critical Thinking 9 - Effortless Math"?
No one replied yet.