Ratio, Proportion and Percentages Puzzle – Challenge 26
This is a great math challenge and it is a perfect educational activity for practicing children’s math skills. For additional educational resources, . For additional educational resources
Challenge:
The sale price of a computer with \(20\%\) discount is $20 cheaper than its price with \(15\%\) discount. What is the original price of the computer?
The Absolute Best Book to Challenge Your Smart Student!

The correct answer is 400.
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
Let’s choose x for the original price of the computer. Then,
0.80 x = 0.85 x – 20 → 0.05x = 20 → x = 400
The original price of the computer is $400The Absolute Best Books to Ace Algebra
Related to This Article
More math articles
- The Sociological Imagination and the Origins of Sociology
- Grade 4 Literary Analysis: Theme, Character Change, and Text Evidence Made Practical
- Labeling and Special Identifiers
- The Best Grade 6 ELA Practice Tests for Vermont Students
- What Topics Are Covered in Algebra 1?
- How to Evaluate Trigonometric Function? (+FREE Worksheet!)
- Agenda setting
- Patronage and the spoils system
- Coordinate Planes as Maps
- How to Identify Statistical Questions













What people say about "Ratio, Proportion and Percentages Puzzle – Challenge 26 - Effortless Math"?
No one replied yet.