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!
$11.99
Satisfied 123 Students
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
$14.99Satisfied 1 Students$14.99Satisfied 92 Students$15.99Satisfied 125 Students
Related to This Article
More math articles
- 7th Grade Wisconsin Forward Math Worksheets: FREE & Printable
- Full-Length ACT Math Practice Test
- Best Laptops for Middle School Students
- How to Score 800 on SAT Math?
- How to Solve Multi-Step Word Problems
- How to Master the Average Rate of Change
- 8th Grade OST Math Practice Test Questions
- How to Graph a Horizontal or Vertical line?
- TASC Math Test-Taking Strategies
- The Ultimate 6th Grade AzMERIT Math Course (+FREE Worksheets)
What people say about "Intelligent Math Puzzle – Challenge 83 - Effortless Math: We Help Students Learn to LOVE Mathematics"?
No one replied yet.