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
- Reading and Writing Numbers for 5th Grade: Standard, Word, and Expanded Form
- How to Find Proportional Ratios? (+FREE Worksheet!)
- How to Solve Word Problems of Subtracting Numbers Up to 7 Digits
- How to Solve Conditional and Binomial Probabilities?
- Full-Length ATI TEAS 7 Math Practice Test
- Top 10 Praxis Core Math Practice Questions
- FREE 3rd Grade FSA Math Practice Test
- The Ultimate 7th Grade SC Ready Math Course (+FREE Worksheets)
- Play the Math Game: How to Craft Tables and Graphs for Two-variable Equations
- Top 10 3rd Grade SBAC Math Practice Questions
What people say about "Algebra Puzzle – Challenge 43 - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.