Intelligent Math Puzzle – Challenge 91
Looking for great math puzzles to get students strategically thinking about math? If so, then this math challenge is just for you!
Challenge:
Mrs. Walters has 61 candles. She burns one candle every day and always makes one new one from the remaining wax of seven burnt candles. After how many days she needs to buy new candles?
A- 62
B- 68
C- 69
D- 70
E- 71
The Absolute Best Book to Challenge Your Smart Student!
The correct answer is E.
Mrs. Walters burns one candle every day and she can make a new one from the remaining wax of seven burnt candles. After 56 days, Mrs. Walters can make 8 new candles. (56 ÷ 7 = 8)
So, she has 13 candles now. After seven days, she burns 7 candles and makes another candle. So, she has 7 candles now. She can burn these 7 candles in 7 days and make a new candle after that for another day.
Therefore, she needs to buy new candles after 71 days:
56 + 7 + 7 + 1 = 71
The Best Books to Ace Algebra
Related to This Article
More math articles
- How To Get A Perfect Score Of 800 On SAT Math?
- Best Laptops for Students: Lenovo vs. HP vs. Dell
- How to Find the Volume and Surface Area of a Triangular Pyramid?
- 4th Grade STAAR Math Practice Test Questions
- Exponential and logarithmic integrals Simplified
- How to Calculate Limits of Functions
- Embarking on an Adventure: How to Solve Word Problems Involving Percents of Numbers and Percent Equations
- 7th Grade Ohio’s State Tests Math Worksheets: FREE & Printable
- How to Solve Non-Right Triangles Problems
- How to Simplify Polynomials? (+FREE Worksheet!)
What people say about "Intelligent Math Puzzle – Challenge 91 - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.