Ratio, Proportion and Percentages Puzzle – Challenge 28

Ratio, Proportion and Percentages Puzzle – Challenge 28

This is a great math and critical thinking challenge to strengthen a child’s grasp of math concepts in a fun way.

Challenge:

During last three years, the price of a car is reduced by \(10\%\) in the first year, \(20\%\) in the second year, and \(25\%\) in the third year. What percent of the original price is the total reduction of the car’s price?

A- \(36\%\)

B- \(40\%\)

C- \(46\%\)

D- \(54\%\)

E- \(55\%\)

The Absolute Best Book to challenge your Smart Student!

The correct answer is C.

Choose x for current price of the car. In the first year, the price of the car reduced to \(0.90 x\). Next year, it’ll be
\(0.90x × 0.80 = 0.72x\).
For the third year, the price of the car is: \(0.72x × 0.75 = 0.54 x\)
Therefore, \(46\%\) of the original price is the total reduction of the car’s price.

Related to "Ratio, Proportion and Percentages Puzzle – Challenge 28"

Other Topics Puzzle – Challenge 100
Other Topics Puzzle – Challenge 100
Other Topics Puzzle – Challenge 99
Other Topics Puzzle – Challenge 99
Other Topics Puzzle – Challenge 98
Other Topics Puzzle – Challenge 98
Other Topics Puzzle – Challenge 97
Other Topics Puzzle – Challenge 97
Other Topics Puzzle – Challenge 96
Other Topics Puzzle – Challenge 96
Other Topics Puzzle – Challenge 95
Other Topics Puzzle – Challenge 95
Other Topics Puzzle – Challenge 94
Other Topics Puzzle – Challenge 94
Intelligent Math Puzzle – Challenge 93
Intelligent Math Puzzle – Challenge 93
Intelligent Math Puzzle – Challenge 92
Intelligent Math Puzzle – Challenge 92
Intelligent Math Puzzle – Challenge 91
Intelligent Math Puzzle – Challenge 91

Leave a Reply

Your email address will not be published. Required fields are marked *