Other Topics Puzzle – Challenge 94
Math and critical thinking challenges like this one are educational activities for practicing children's math skills. These challenges are also a fun way for adults to test their math knowledge.
Challenge:
There are 21 students in a class. Their Math teacher asked them this question: “How many of other students in this class have the same name as you?” The teacher asked the students to write their answers in a piece of paper. Then the teacher gathered the answers and removed repeated answers. What is the maximum number of answers that the teacher kept?
A- 0
B- 1
C- 2
D- 20
E- 21
The Absolute Best Book to Challenge Your Smart Student!
The correct answer is B.
Let’s assume that all of the students have the name John. So, to answer the questions, all of them have written 20. In this case, the teacher kept none of the answers.
If none of the students have the same name, they all answer 0. And the teacher won’t keep any answer.
Let’s assume that only one of them has a different name. Then, in this case, 20 students wrote 19 and one wrote 0. The teacher kept the last one.
The maximum number of answers that the teacher kept was one.
The Best Books to Ace Algebra
Related to This Article
More math articles
- How to Mastering Sequence Word Problems: A Comprehensive Guide
- The Ultimate 6th Grade NHSAS Math Course (+FREE Worksheets)
- Top 10 Tips to Overcome SAT Math Anxiety
- How to Understand Decimals Conveyed in Words
- FREE 8th Grade FSA Math Practice Test
- 8th Grade PEAKS Math Worksheets: FREE & Printable
- A Comprehensive Collection of FREE SAT Math Practice Tests
- Calculations to Help Curb Your Rising Debt
- How to Prepare for the ParaPro Math Test?
- Best Laptop for High School Students in 2024
What people say about "Other Topics Puzzle – Challenge 94 - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.