# One simple process problem

• Feb 9th 2007, 12:20 PM
One simple process problem
27 - 256 divided by 4^2

I get... ( 27- 256 divided by 64 = -3578 125)...I know t's wrong but-
• Feb 9th 2007, 12:40 PM
I believe I forgot to divide first.

So it's probably 23.

27 - 4 = 23
• Feb 9th 2007, 01:07 PM
CaptainBlack
Quote:

27 - 256 divided by 4^2

I get... ( 27- 256 divided by 64 = -3578 125)...I know t's wrong but-

Do you mean:

(27-256)/(4^2)

or:

27 - (256/(4^2))

or ....

but whichever way ... 4^2=16.

RonL
• Feb 9th 2007, 01:18 PM
27 - 256 divided by 4^2

27 - 16 = 11

I believe I wrote the problem wrong

I should have wrote
27 - 256 divided by 4^3
• Feb 9th 2007, 01:23 PM
CaptainBlack
Quote:

27 - 256 divided by 4^2
I believe I wrote the problem wrong

I should have wrote
27 - 256 divided by 4^3

It is still ambiguous. Add brackets to make the meaning clear.

Given the numbers involved it almost certainly is wanting:

27 - (256/(4^3)) = 27 - 256/64 = 27 - 4 = 23.

But this is guess work on my part, for all I know I am wasting my time
on the wrong problem.

RonL
• Feb 9th 2007, 03:07 PM
• Feb 9th 2007, 10:53 PM
CaptainBlack
Quote:

then it is ambiguous and you are free to make a choice about where you
put the brackets to make it unambiguous. But you should state what you
have done. I would interepret it as 27 - [256/(4^3)], as that makes
everything nice and round.

So go for an answer something like:

Assume that:

27 - 256 : 4^3

means:

27 - [256 : (4^3)]

which is:

27 - [256/(4^3)] = 27 - 256/64 = 27 - 5 = 23.

If you need a justification for making this assumption it can be:
" ':' is a variant form of division '/', and in most conventions for
the precedence of arithmetic operators '/' takes precedence over
'+' and '-' "

RonL
• Feb 10th 2007, 12:17 AM
earboth
Quote:

Originally Posted by CaptainBlack
which is:

27 - [256/(4^3)] = 27 - 256/64 = 27 - 5 = 23.

...

RonL

Hello, CaptainBlack,

I don't want to pick at you but to me it should read like this:

27 - [256/(4^3)] = 27 - 256/64 = 27 - 4 = 23.

EB