48÷2(9+3)=?
- Thread starter dday4you
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Taking it literally it's 288
48÷2(9+3)=48/2 x 12 = 24x12
However, if someone handed this two me I'd instead:
1) bitchslap them for expressing it on one line.
2) bitchslap them again for not making their meaning clear.
3) Presume they meant 48/(2(9+3) and say =2 since that is what they would usually be after in my experience. If they meant the literal interpretation I find most people (when they don't write it properly on two lines or use sub/super script) write 48/2 x (9+3).
So... is this question purely a mathamatical exercise or does it relate to a real world scenario?
48÷2(9+3)=48/2 x 12 = 24x12
However, if someone handed this two me I'd instead:
1) bitchslap them for expressing it on one line.
2) bitchslap them again for not making their meaning clear.
3) Presume they meant 48/(2(9+3) and say =2 since that is what they would usually be after in my experience. If they meant the literal interpretation I find most people (when they don't write it properly on two lines or use sub/super script) write 48/2 x (9+3).
So... is this question purely a mathamatical exercise or does it relate to a real world scenario?
I've made a habit of asking more INTERESTING mathematics questions every-time someone tries to troll with this shit. So here we go!
If the average length of a car is 5.5 metres and the circumference of Earth is approximately 40,050km then how many cars would fit in a line of cars bumper to bumper right around the world?
Yay! See? Much more interesting. And as someone pointed out earlier, no I don't ask Mathematics questions to make people feel dumb. Mathematics is fun people.
If the average length of a car is 5.5 metres and the circumference of Earth is approximately 40,050km then how many cars would fit in a line of cars bumper to bumper right around the world?
Yay! See? Much more interesting. And as someone pointed out earlier, no I don't ask Mathematics questions to make people feel dumb. Mathematics is fun people.
must not be a scientific Calculator, normal ones are not programed to prioritise bracketsMercurySteam said:
Operator precedence:Iznat said:No D: The priority is BEMDASWuggy said:
Brackets
Exponentials
Multiplication
Division
Addition
Subtraction
Ergo:
2(9+3)
2(12)
24
leading to
48/24
Goddamnit, you guys are wrong!
Terms inside parentheses or brackets.
Exponents and roots.
Multiplication and division. As they appear left to right.
Addition and subtraction. As they appear left to right.
The point is, that neither multiplication nor division take higher priority and thus it's custom to prioritize from right to left.
Okay, how about an expression to sort out the dividing and multipling, just as an example to people who think otherwise.
So we have the expression
48÷2x
The 2 belongs to the x, because that's how many x components there are. The 48 doesn't magically 'take' the 2 from the 2x term, making the expression simplify to:
24x
That's ridiculous, even if you only have limited knowledge of mathematics you can see this doesn't work.
Now, if we say that x=(9+3), we substitute x with (9+3) and arrive at the original expression of 48÷2(9+3)
If you then repeat the process with the original equation, once again, the 48 does not take the 2 from the (9+3) term
Hence the answer arrived at is that 48÷2(9+3)= 2
For the more graphically inclined people here is a simple way of sorting this out:
48
48÷2(9+3) = --------------------
2(9+3)
The terms are seperated by the division line so there is no confusion.
Hope some of you learnt something.
So we have the expression
48÷2x
The 2 belongs to the x, because that's how many x components there are. The 48 doesn't magically 'take' the 2 from the 2x term, making the expression simplify to:
24x
That's ridiculous, even if you only have limited knowledge of mathematics you can see this doesn't work.
Now, if we say that x=(9+3), we substitute x with (9+3) and arrive at the original expression of 48÷2(9+3)
If you then repeat the process with the original equation, once again, the 48 does not take the 2 from the (9+3) term
Hence the answer arrived at is that 48÷2(9+3)= 2
For the more graphically inclined people here is a simple way of sorting this out:
48
48÷2(9+3) = --------------------
2(9+3)
The terms are seperated by the division line so there is no confusion.
Hope some of you learnt something.
right to left does not count when using Brackets, they just go 1st no exceptionsWuggy said:Operator precedence:Iznat said:No D: The priority is BEMDASWuggy said:
Brackets
Exponentials
Multiplication
Division
Addition
Subtraction
Ergo:
2(9+3)
2(12)
24
leading to
48/24
Goddamnit, you guys are wrong!
Terms inside parentheses or brackets.
Exponents and roots.
Multiplication and division. As they appear left to right.
Addition and subtraction. As they appear left to right.
The point is, that neither multiplication nor division take higher priority and thus it's custom to prioritize from right to left.
I'm sure we've had this but different mnemonics give different results. Since in the Uk it's generally taught as BODMAS, i.e gives division priority over multiplication and others it's the opther way around... this is because multiplication has equal priority to division.E-Penguin said:Solve the brackets first, then you multiply, then you divide.Merkavar said:288
48÷2(9+3)
(9+3)=12
2*12=24
48/24=2
It's 2.
So, I don't think you should have been the one to post that picture.
No intended offence.