View Poll Results: 48÷2(9+3) = ???
2
58
58.59%
288
41
41.41%
Voters: 99. You may not vote on this poll
48÷2(9+3) = ???
09 April 2011, 12:12 AM
#61
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Corner. 
All the scientific calculation programs I can be bothered to try re-render the sum as 48/2 *(9+3) = 288, so there's something at fault with the original notation. Deliberate, I think.
All the scientific calculation programs I can be bothered to try re-render the sum as 48/2 *(9+3) = 288, so there's something at fault with the original notation. Deliberate, I think.
09 April 2011, 12:31 AM
#62
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It's like saying Sting was the talent in The Police, otherwise...
09 April 2011, 07:50 AM
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Seems logical that 48 is divided by the result of the calculation in brackets. The way it is written means that the sum in the brackets relates to the 2 in front of it. 48 is then divided by the result of the bracketed calculation.
Les
Les
09 April 2011, 09:48 AM
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Looking at the expression "48÷2(9+3)", the part "2(9+3)" can be re-written as "(2*9 + 2*3)".
Thus the whole thing becomes "48 ÷ (2*9 + 2*3)" which is "48 ÷ (18 + 6)" which is "48 ÷ 24" which is 2!!!
mb
Thus the whole thing becomes "48 ÷ (2*9 + 2*3)" which is "48 ÷ (18 + 6)" which is "48 ÷ 24" which is 2!!!
mb
09 April 2011, 10:08 AM
#68
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...or let us look at the problem another way.
If we say that the correct answer is "2" then we can say...
48÷2(9+3) = 2
which can be re-written as...
48 = 2 * 2(9+3)
which is...
48 = 2 * 2(12)
or
48 = 2 * 24
or 48 = 48
Thus an answer or "2" works very well
Now let us try the same thing with the "answer" of 288...
48÷2(9+3) = 288
48 = 288 * 2(9+3)
48 = 288 * 2(12)
48 = 288 * 24
48 = 6912 - which is obviously incorrect!!!!
The answer is TWO
mb
If we say that the correct answer is "2" then we can say...
48÷2(9+3) = 2
which can be re-written as...
48 = 2 * 2(9+3)
which is...
48 = 2 * 2(12)
or
48 = 2 * 24
or 48 = 48
Thus an answer or "2" works very well
Now let us try the same thing with the "answer" of 288...
48÷2(9+3) = 288
48 = 288 * 2(9+3)
48 = 288 * 2(12)
48 = 288 * 24
48 = 6912 - which is obviously incorrect!!!!
The answer is TWO
mb
09 April 2011, 10:24 AM
#71
...or let us look at the problem another way.
If we say that the correct answer is "2" then we can say...
48÷2(9+3) = 2
which can be re-written as...
48 = 2 * 2(9+3)
which is...
48 = 2 * 2(12)
or
48 = 2 * 24
or 48 = 48
Thus an answer or "2" works very well
Now let us try the same thing with the "answer" of 288...
48÷2(9+3) = 288
48 = 288 * 2(9+3)
48 = 288 * 2(12)
48 = 288 * 24
48 = 6912 - which is obviously incorrect!!!!
The answer is TWO
mb
If we say that the correct answer is "2" then we can say...
48÷2(9+3) = 2
which can be re-written as...
48 = 2 * 2(9+3)
which is...
48 = 2 * 2(12)
or
48 = 2 * 24
or 48 = 48
Thus an answer or "2" works very well
Now let us try the same thing with the "answer" of 288...
48÷2(9+3) = 288
48 = 288 * 2(9+3)
48 = 288 * 2(12)
48 = 288 * 24
48 = 6912 - which is obviously incorrect!!!!
The answer is TWO
mb
Or also
48/2(9+3) = 48 * (1/2(9+3)) = 48 * (1/2(12)) = 48 * (1/24) = 48/24 = 2
or, you could think of it like this:
48
--------- =
2(9+3)
makes it easier to visualise.
09 April 2011, 11:14 AM
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09 April 2011, 11:55 AM
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As long as you put it into a calculator working the 'b' side out first then you still get 2 because it is 48/24. If you put it into the calculator as 48/2x9+3 then that is not how the problem is written is it? That would also give you the answer of 219. If you start to do part of the problem in your head first (i.e. the 9+3) and then enter that in the calculator as 48/2x12 then you are not entering into the calculator as it is litterally written anyway.
Last edited by Bravo2zero_sps; 09 April 2011 at 11:58 AM.
09 April 2011, 11:55 AM
#81
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09 April 2011, 12:01 PM
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48/2(9+3) can be re-written as 48/2 * (9+3), which in turn leads to:
48/2*12=288
It all depends on how you read the original formula, and I believe that what I have written above is correct based on BODMAS. You must do the brackes first, and then process from left to right doing the multiplication and division.
09 April 2011, 12:06 PM
#83
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You could claim that the problem is able to be re-written as above, but that does depend on how you interpret it. An alternative would be:
48/2(9+3) can be re-written as 48/2 * (9+3), which in turn leads to:
48/2*12=288
It all depends on how you read the original formula, and I believe that what I have written above is correct based on BODMAS. You must do the brackes first, and then process from left to right doing the multiplication and division.
48/2(9+3) can be re-written as 48/2 * (9+3), which in turn leads to:
48/2*12=288
It all depends on how you read the original formula, and I believe that what I have written above is correct based on BODMAS. You must do the brackes first, and then process from left to right doing the multiplication and division.
The wife is asking a good mate of hers who is currently doing her doctorate in Maths as to what the correct answer is
Last edited by Bravo2zero_sps; 09 April 2011 at 12:20 PM.
09 April 2011, 01:20 PM
#84
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As long as you put it into a calculator working the 'b' side out first then you still get 2 because it is 48/24. If you put it into the calculator as 48/2x9+3 then that is not how the problem is written is it? That would also give you the answer of 219. If you start to do part of the problem in your head first (i.e. the 9+3) and then enter that in the calculator as 48/2x12 then you are not entering into the calculator as it is litterally written anyway.
09 April 2011, 01:56 PM
#85
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If you put "48÷2(9+3)" (which is what the OP posted) into Mathway then you get "2" as the answer, however if you enter "48/2(9+3)" it does indeed appear to give the result as "288".
But as Kieran_Burns says, the Merkins can't even spell "Maths" correctly, so what hope is there for their sums and takeaways
mb
But as Kieran_Burns says, the Merkins can't even spell "Maths" correctly, so what hope is there for their sums and takeaways
mb
09 April 2011, 02:02 PM
#86
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If you move a divisionification from one side of the equals sign to the other it becomes a multiplitudication.
mb
09 April 2011, 02:08 PM
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09 April 2011, 02:16 PM
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09 April 2011, 03:31 PM
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I had that issue when trying it and couldn't get it to work - used the scientific calculator in Windows.