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The Correct answer

Last response: in Work & Education
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January 23, 2014 11:36:21 AM

there are no Parentheses in this problem.5x5+5x5+5-5x5 wouldnt the answer be 750?

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January 23, 2014 11:41:56 AM

I don't know i got 312.50....but then again i'm no math magician.....
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January 23, 2014 11:43:43 AM

Homework assignment? Classwork? Challenge?

Which is it?
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January 23, 2014 11:49:08 AM

The correct answer is 30. The multiplication is counted first, then the + and -.

1. perform all operations in parentheses ( none exist so we are fine )
2. perform all multiplication and division operations from left to right -> 25 + 25 + 5 - 25
3. perform all additive and subtractive operation from left to right -> 50 + 5 - 25 -> 55 - 25 -> 30

well unless that . is part of the calculation, in which case the result is different, but the rules stay the same.
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January 23, 2014 11:52:23 AM

ldewitt said:
I don't know i got 312.50....but then again i'm no math magician.....


I counted the . so if were not counting the . then i got 750 also....but then again i'm no math magician ;) 
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January 23, 2014 11:53:52 AM

30 is the answer
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January 23, 2014 11:56:01 AM

I've seen these before, and the 'correct' answer is actually unknowable. The equation is written incorrectly.
5x5+5x5+5-5x5 = x

Order of operations says PEMDAS
Parentheses
Exponent
Multiplication
Division
Addition
Subtraction

The 3 relevant ops in bold above.

So theoretically, it would be:
(5x5)+(5x5)+5-(5x5) = 25+25+5-25 = 30
Edited for correctness

Violating PEMDAS, reading explicit left to right, it comes out to 750.

These are just written to confuse, and see what weird answers people come up with.


EDIT: OOPS. Yes....30. I left out a 5.
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January 23, 2014 11:56:19 AM

42 :D 
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January 24, 2014 8:20:44 AM

Au_equus said:
42 :D 


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January 24, 2014 9:22:57 AM

helenralph said:
Au_equus said:
42 :D 




Not really I just selected it since that answer us unsolvable.
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