# Intelligent Math Puzzle – Challenge 83

If you REALLY enjoy solving complicated math puzzle and exercise 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

$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 = 170 ## Related to This Article ### More math articles ### What people say about "Intelligent Math Puzzle - Challenge 83"? No one replied yet. X 30% OFF Limited time only! Save Over 30% SAVE$5

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