Algebra Puzzle – Challenge 43
Time to challenge your brain with another great math puzzle! This puzzle needs a deep understanding of Algebra!
Challenge:
David can finish a job in 54 days. Peter is \(35\%\) faster than David. How long does it take Peter to finish the same job?
A- 38
B- 40
C- 44.2
D- 50
E- 52
The Absolute Best Book to Challenge Your Smart Student!
The correct answer is B.
Peter is \(35\%\) faster than David. Therefore, when David finishes a job, Peter finishes 1.35 of the same job.
Let’s assume that David prepares 54 units in 54 days. Then, Peter can prepares 54 × 1.35 = 72.9 units in the same time.
Now, how long does it take Peter to prepare 54 units?
\(\frac{54}{x} = \frac{72.9}{54} ⇒ x = 40\)
It takes Peter 40 days to finish the same job.The Absolute Best Books to Ace Algebra
Related to This Article
More math articles
- How to Solve Rational Equations? (+FREE Worksheet!)
- Standard, Formal English
- Free Grade 5 Math Worksheet Library for Virginia (SOL): 49 Printable Skill Pages
- Unlocking the Secrets of Triangle Angle Bisectors
- A Comprehensive Collection of Free ASVAB Math Practice Tests
- How to Use Number Lines to Identify Equivalent Fractions?
- Comparing and Ordering Decimals for 4th Grade
- The Quotient Rule: Not Just Dividing Derivatives But Simple Enough
- The Best Grade 4 Math Book for Louisiana Students
- Geometry Puzzle – Challenge 73
What people say about "Algebra Puzzle – Challenge 43 - Effortless Math"?
No one replied yet.