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Author Topic: Daft Question time  (Read 1373 times)

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Mr Skrunts

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Daft Question time
« on: 23 July 2012, 01:24:21 »
48/2(9+3) = ?
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05omegav6

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Re: Daft Question time
« Reply #1 on: 23 July 2012, 01:29:00 »
2 :P
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Gaffers

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Re: Daft Question time
« Reply #2 on: 23 July 2012, 02:25:06 »
288 if following BODMAS :-\
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Taxi_Driver

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Re: Daft Question time
« Reply #3 on: 23 July 2012, 06:30:13 »
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markrnorton

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Re: Daft Question time
« Reply #4 on: 23 July 2012, 07:51:05 »
288
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plym ian

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Re: Daft Question time
« Reply #5 on: 23 July 2012, 08:34:23 »
banana?
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Plomien

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Re: Daft Question time
« Reply #6 on: 23 July 2012, 08:54:46 »
2 is the answer
48/ 24 
seemples
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Re: Daft Question time
« Reply #7 on: 23 July 2012, 10:41:56 »
So what are the rules to work it out?

I was allways taught to work out the brackets 1st = ok, sorted that
The next sum is sorted

But there is no option to force the result, so as much as both answers could be correct then what sum forces a result? :-\
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Plomien

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Re: Daft Question time
« Reply #8 on: 23 July 2012, 10:53:57 »
work out the formula on the right first 2 x (9+3) which is 24 the divide it by 48
if it was 48/2 then that would be in brackets then multiply by 12 but the formula is incorrect for the format given
if you read it properly it is
48
--------
2(9+3)
« Last Edit: 23 July 2012, 10:56:27 by Plomien »
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cem_devecioglu

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Re: Daft Question time
« Reply #9 on: 23 July 2012, 11:01:45 »
interesting development environment responds 288
 
but normally * has precedence over / which in that case result must be 2  ;D
 
 
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cem_devecioglu

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Re: Daft Question time
« Reply #10 on: 23 July 2012, 11:04:07 »
so question is not daft as it claims ;D :D :y
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Plomien

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Re: Daft Question time
« Reply #11 on: 23 July 2012, 11:04:23 »
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cem_devecioglu

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Re: Daft Question time
« Reply #12 on: 23 July 2012, 11:08:06 »
in order to prevent the wrong calculation order, using () will solve the problem and bring the actual desired result..
 
I always hate this operator precedence and never trust it :-\
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Allenm

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Re: Daft Question time
« Reply #13 on: 23 July 2012, 11:15:53 »
I think it is 288

Mulitply & divide are equal , then add & subtract

Equations written like this are evaluated from left to right, The brackets just force the result of the equation in them to be assesed before continuing.

so 48 / 2 = 24
add 9 and 3 = 12
Multiply 24 by 12  = 288

Merv
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cem_devecioglu

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Re: Daft Question time
« Reply #14 on: 23 July 2012, 11:30:18 »
http://en.wikipedia.org/wiki/Order_of_operations
 
there is a table for order of operations.. (also in programming laguages)
 
in that table * and  / and modulus % are at the same line.. but for order its from left to right..
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