Intelligent Math Puzzle – Challenge 83
If you REALLY enjoy solving complicated math puzzles and exercising your brain, then this math challenge is just for you!
Challenge:
(-70) + (-60) + (-50) + (-40) + … + n = ?
If the pattern of the above operation continues, which of the following could be the answer?
A- 90
B- 100
C- 150
D- 170
E- 200
The Absolute Best Book to Challenge Your Smart Student!
The correct answer is D.
The first number in the equation is -70 and the next item is 10 more than the previous number. If the pattern continues, the sum of all numbers till number +70 is 0. Why?
The next number is 80 and the number after that is 90.
80 + 90 = 170The Best Books to Ace Algebra
Related to This Article
More math articles
- Human Ecology and Urban Spatial Models
- 4th Grade NHSAS Math Worksheets: FREE & Printable
- Word Problems Involving Writing a Ratio
- Graphical Insights: How to Solve Systems of Non-linear Equations Step-by-Step
- Representation and the Construction of Social Reality
- Free Grade 6 English Worksheets for Tennessee Students
- Circle Graphs and Scatterplots
- Algebra Puzzle – Challenge 43
- 8th Grade New York State Assessments Math Worksheets: FREE & Printable
- North Dakota NDSA Grade 7 Math Worksheets: 95 Free Printable PDFs Organized by Skill
What people say about "Intelligent Math Puzzle – Challenge 83 - Effortless Math"?
No one replied yet.