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Started By
Message
re: Bizarre Math Question and Answer breaks the internet - Sorry if already posted
Posted on 4/15/15 at 3:09 pm to NYNolaguy1
Posted on 4/15/15 at 3:09 pm to NYNolaguy1
Should have wrote it like this
48
2 (9+3) = 288
or
__48__
2(9+3) = 2
The above is the correct answer. The debate will continue since the equation was poorly written.
48
2 (9+3) = 288
or
__48__
2(9+3) = 2
quote:
To me it comes down to how you read the ÷ symbol. Again the ÷ is ambiguous and there's a reason you won't see it past 8th grade.
The above is the correct answer. The debate will continue since the equation was poorly written.
1
Posted on 4/15/15 at 3:10 pm to Jimbeaux28
quote:
Plug this in a cell in Excel and tell me what you get:
=48/2*(9+3)
Well you changed the problem, Excel gives an error as the problem is written.
Posted on 4/15/15 at 3:10 pm to southernelite
quote:48
However, if / then its
48
____
2(9+3)
That's 2 since everything in the denominator should be worked first.
____
2(9+3) this is completely different
Posted on 4/15/15 at 3:11 pm to Duke
quote:
This thread is why textbooks write any equations with division in them as fractions.
Bingo.
Posted on 4/15/15 at 3:11 pm to southernelite
quote:
and MD are equal.
Yes
Posted on 4/15/15 at 3:15 pm to SabiDojo
Division is a form of multiplication and multiplication is a form of addition.
Multiplication is a sum of the portions of a number.
So I'll hold hands here and guide any nonbelievers through.
48÷2(9+3) is 48÷2×12.
48÷2×12 is 48×.5×12.
Now it is all multiplication.
This can be written as:
48×.5×12=288 or a half (.5) portion of 48 (24), then 12 portions of 24 (288).
48×12×.5=288 or 12 portions of 48 (576), then a half (.5) portion of 576 (288).
12×.5×48=288 or a half (.5) portion of 12 (6), then 48 portions of 6 (288).
12×48×.5=288 or 48 portions of 12 (576), then a half (.5) portion of 576 (288).
Stick with me here, it's about to get crazy. (Maybe think of .5 as a half dollar coin?)
.5×12×48=288 or 12 portions of .5 (6) [12 half dollars gives you 6 full dollars], then 48 portions of 6 (288).
.5×48×12=288 or 48 portions of .5 (24) [48 half dollars gives you 24 full dollars ], then 12 portions of 24 (288).
Multiplication is a sum of the portions of a number.
So I'll hold hands here and guide any nonbelievers through.
48÷2(9+3) is 48÷2×12.
48÷2×12 is 48×.5×12.
Now it is all multiplication.
This can be written as:
48×.5×12=288 or a half (.5) portion of 48 (24), then 12 portions of 24 (288).
48×12×.5=288 or 12 portions of 48 (576), then a half (.5) portion of 576 (288).
12×.5×48=288 or a half (.5) portion of 12 (6), then 48 portions of 6 (288).
12×48×.5=288 or 48 portions of 12 (576), then a half (.5) portion of 576 (288).
Stick with me here, it's about to get crazy. (Maybe think of .5 as a half dollar coin?)
.5×12×48=288 or 12 portions of .5 (6) [12 half dollars gives you 6 full dollars], then 48 portions of 6 (288).
.5×48×12=288 or 48 portions of .5 (24) [48 half dollars gives you 24 full dollars ], then 12 portions of 24 (288).
Posted on 4/15/15 at 3:16 pm to Aux Arc
quote:
You just changed my mind.
Posted on 4/15/15 at 3:21 pm to PhiTiger1764
I lost my arse in the last version of this thread. Answer is 288.
Posted on 4/15/15 at 3:22 pm to Swoopin
quote:
I lost my arse in the last version of this thread.
I love this expression. Upvote to you
Posted on 4/15/15 at 3:26 pm to lsupride87
Posted on 4/15/15 at 3:30 pm to KosmoCramer
PEMDAS
First reduction:
48/2(12)=48/2*12
Mult and division, like add/sub carry equal weight. Therefore process goes left to right if both exist inline.
Therefore Second reduction:
24*12
third reduction:
288
First reduction:
48/2(12)=48/2*12
Mult and division, like add/sub carry equal weight. Therefore process goes left to right if both exist inline.
Therefore Second reduction:
24*12
third reduction:
288
Posted on 4/15/15 at 3:30 pm to NYNolaguy1
quote:The problem is that while you can argue two answers, one answer (2) requires an assumption that is not stated. If you solve the problem as written, and don't assume anything that is not specified, the answer is 288. So while there may be 2 arguable answers, logically 288 is a superior answer (Occam's Razor).
According to many sources, there is no right answer.
This post was edited on 4/15/15 at 3:35 pm
Posted on 4/15/15 at 3:33 pm to buckeye_vol
quote:Yep. That has been my point the whole time. Just read the equation as written, dont try and assume all these crazy arse theories and rewrite it, and it is 288. dont worry about the ÷ or /, simply solve it as is with the ÷ symbol, and the answer can only be 288
The problem is that while you can argue two answers, one answer (2) requires an assumption that is not stated. If you solve the problem as written, and don't assume anything thay is not specified, the answer is 288
Posted on 4/15/15 at 3:44 pm to lsupride87
quote:I don't understand why that is so complicated. Besides if the portion after the ÷ is meant to be be enclosed, then it's not like there isn't text to show that. If a person was programming mathematical code in one of the many programs that require the parentheses (R, Excel, etc.) and failed to so, the excuse that it could be "technically" right if you make this assumption is not going to fly.
Yep. That has been my point the whole time. Just read the equation as written, dont try and assume all these crazy arse theories and rewrite it, and it is 288. dont worry about the ÷ or /, simply solve it as is with the ÷ symbol, and the answer can only be 288
This post was edited on 4/15/15 at 3:45 pm
Posted on 4/15/15 at 3:47 pm to DirtyMikeandtheBoys
L-R when the problem has been reduced to Math & Division.
So, once the paranthese work is complete, the problem becomes:
48/2*12
24*12
288
This: 2(12) is 2*12
So, once the paranthese work is complete, the problem becomes:
48/2*12
24*12
288
This: 2(12) is 2*12
This post was edited on 4/15/15 at 3:48 pm
Posted on 4/15/15 at 3:57 pm to KosmoCramer
There are 3 levels to PEMDAS.
Level 1 = Parentheses and Exponents
Level 2 = Multiply and Divide
Level 3 = Add and Subtract
If they are on the same level, you then go from left to right and work out which ever comes first
48/2(9+3)
48/2(12)
24(12)
288
Level 1 = Parentheses and Exponents
Level 2 = Multiply and Divide
Level 3 = Add and Subtract
If they are on the same level, you then go from left to right and work out which ever comes first
48/2(9+3)
48/2(12)
24(12)
288
This post was edited on 4/15/15 at 3:58 pm
Posted on 4/15/15 at 3:59 pm to KosmoCramer
I got it wrong initially because my mind turned (9+3) into (9x3) for some annoying fricking reason.
If this was a gif that switched the + to x randomly and very quickly after a few seconds this would be a great troll.
If this was a gif that switched the + to x randomly and very quickly after a few seconds this would be a great troll.
Posted on 4/15/15 at 4:05 pm to KosmoCramer
Nope that's the right answer
Posted on 4/15/15 at 4:06 pm to StinkBait72
quote:All of this. ALL OF THIS.
Should have wrote it like this
48
2 (9+3) = 288
or
__48__
2(9+3) = 2
quote:
To me it comes down to how you read the ÷ symbol. Again the ÷ is ambiguous and there's a reason you won't see it past 8th grade.
The above is the correct answer. The debate will continue since the equation was poorly written.
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