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
[include_netrun_products_block from-products="product/ged-math-test-prep-in-30-days-complete-study-guide-and-test-tutor-for-ged-mathematics-the-ultimate-book-for-beginners-and-pros-two-practice-tests/" product-list-class="bundle-products float-left" product-item-class="float-left" product-item-image-container-class="p-0 float-left" product-item-image-container-size="col-2" product-item-image-container-custom-style="" product-item-container-size="" product-item-add-to-cart-class="btn-accent btn-purchase-ajax" product-item-button-custom-url="{{url}}/?ajax-add-to-cart={{id}}" product-item-button-custom-url-if-not-salable="{{productUrl}} product-item-container-class="" product-item-element-order="image,title,purchase,price" product-item-title-size="" product-item-title-wrapper-size="col-10" product-item-title-tag="h3" product-item-title-class="mt-0" product-item-title-wrapper-class="float-left pr-0" product-item-price-size="" product-item-purchase-size="" product-item-purchase-wrapper-size="" product-item-price-wrapper-class="pr-0 float-left" product-item-price-wrapper-size="col-10" product-item-read-more-text="" product-item-add-to-cart-text="" product-item-add-to-cart-custom-attribute="title='Purchase this book with single click'" product-item-thumbnail-size="290-380" show-details="false" show-excerpt="false" paginate="false" lazy-load="true"]
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.
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
Original price was: $29.99.$16.99Current price is: $16.99.
Related to This Article
More math articles
- Classifying a Conic Section (in Standard Form)
- ACT Test Calculator Policy
- 8th Grade OST Math FREE Sample Practice Questions
- 6th Grade OST Math Practice Test Questions
- How to Estimate Limit Values from the Graph?
- How to Break Fractions and Mixed Numbers Apart to Add or Subtract
- The Ultimate 6th Grade KAP Math Course (+FREE Worksheets)
- Best Office Chairs for Online Math Teachers
- 3rd Grade NSCAS Math Worksheets: FREE & Printable
- Best Laptop for High School Students in 2026

















What people say about "Ratio, Proportion and Percentages Puzzle -Critical Thinking 9 - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.