Algebra Puzzle – Challenge 43

Time to challenge your brain with another great math puzzle! This puzzle needs a deep understanding of Algebra!

Algebra Puzzle – Challenge 43

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!

$11.99
Satisfied 123 Students

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.

Related to This Article

What people say about "Algebra Puzzle – Challenge 43 - Effortless Math: We Help Students Learn to LOVE Mathematics"?

No one replied yet.

Leave a Reply

X
30% OFF

Limited time only!

Save Over 30%

Take It Now!

SAVE $5

It was $16.99 now it is $11.99

Math and Critical Thinking Challenges: For the Middle and High School Student