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Chat Area => General Discussion Area => Topic started by: Mr Skrunts on 23 July 2012, 01:24:21

Title: Daft Question time
Post by: Mr Skrunts on 23 July 2012, 01:24:21

48/2(9+3) = ?

Title: Re: Daft Question time
Post by: 05omegav6 on 23 July 2012, 01:29:00

2 :P

Title: Re: Daft Question time
Post by: Gaffers on 23 July 2012, 02:25:06

288 if following BODMAS :-\

Title: Re: Daft Question time
Post by: Taxi_Driver on 23 July 2012, 06:30:13

Quote from: taxi al on 23 July 2012, 01:29:00

2 :P

I'd go along with 2  :y

Title: Re: Daft Question time
Post by: markrnorton on 23 July 2012, 07:51:05

288

Title: Re: Daft Question time
Post by: plym ian on 23 July 2012, 08:34:23

banana?

Title: Re: Daft Question time
Post by: Plomien on 23 July 2012, 08:54:46

2 is the answer
48/ 24 
seemples

Title: Re: Daft Question time
Post by: Mr Skrunts 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? :-\

Title: Re: Daft Question time
Post by: Plomien 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)

Title: Re: Daft Question time
Post by: cem_devecioglu 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
 
 

Title: Re: Daft Question time
Post by: cem_devecioglu on 23 July 2012, 11:04:07

so question is not daft as it claims ;D :D :y

Title: Re: Daft Question time
Post by: Plomien on 23 July 2012, 11:04:23

google calc gives the answer as 288
https://www.google.co.uk/search?q=48%2F2%289%2B3%29&oq=48%2F2%289%2B3%29&gs_l=igoogle.3..0l3j0i5j0i33i30l6.675723.688642.0.689914.11.10.1.0.0.0.191.1004.8j2.10.0...0.0...1ac.lmD8D3k0DLE

Title: Re: Daft Question time
Post by: cem_devecioglu 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 :-\

Title: Re: Daft Question time
Post by: Allenm 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

Title: Re: Daft Question time
Post by: cem_devecioglu on 23 July 2012, 11:30:18

http://en.wikipedia.org/wiki/Order_of_operations (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..