Brain Teaser

[red750]

 

 

 

 

[Marty_d]

7

[red750]

Very good Marty.

 

 

 

 

[Jerry_Atrick]

Fat

[nomadpete]

Fri ?

[red750]

Jerry is correct.

 

 

 

 

[nomadpete]

B

[red750]

 

 

 

 

Here's another Catchphrase.

 

[Marty_d]

I'm tempted to say "This comedian is shit", but it's probably "toilet humour".

[red750]

Toilet humor is correct.

 

 

 

[red750]

The phrase is - The (k)night is young.

 

A different tack.

 

There is much confusion over something that should be unquestioned, mathematics.

 

Answer this problem:      -9 ÷ 3 - 3 - 3 x  0

[facthunter]

Minus 6.  Nev

Edited January 15 by facthunter

[red750]

Correct Nev.

 

 

  

 

 

[facthunter]

7  Nev

[red750]

This is the conundrum.

 

Processing left to right,   7-7 = 0, 0x0 = 0,  0 + 7 = 7.

 

However, Americans, and I guess some others are taught that the order of processing is PEMDAS. The order is PEMDAS: Parentheses, Exponents, Multiplication, Division (from left to right), Addition, and Subtraction (from left to right).

 

So, doing multiplication first, 7 x 0 is 7.  This makes the question  7 - 0 + 7, resulting in 14.

 

So a simple sum here results in 7, but in America it is 14.    How does that work? incidentally, putting this sum into the calculator on your iPhone gives the answer 14.

[red750]

 

 

[facthunter]

ANY number x 0 is 0, IS nought Don't beat around the bush.  Nev

[red750]

That's correct, but it depend where the X 0 occurs. It applies to the value before the X, not the whole sum.

 

Here's another example.

 

 

Left to right, it's   9 - 2  =  7  X  4  =  28. 

 

Using PEMDAS,  2 X  4  = 8,   9  -  8  =  1

[facthunter]

It should properly  have had brackets to avoid ambiguity. Other wise do it left to right..  Nev

[red750]

Not according to the Yanks.

 

[facthunter]

This is NOT AMERICA.  Nev

[red750]

Who said it was? We do trade with America and purchase goods from America. With such differences in processing a basic such as mathematics how can we agree and standardise on anything?

[facthunter]

Why are you giving the American answer as the RIGHT one when THIS is  Australia?. Nev

[red750]

Here we go again. You complain if anyone questions your posts, but you keep doing it.

 

Show where I said they were right. I raised it as a situation which many may not be aware of. If you rely on the calculator app on your phone, you may get results that disagree with what we would expect. I think that's worth raising. Who else agrees with me? Education without accusation.

[facthunter]

YOU DID make the statement 7x0 is  7 which it is not. I just  now identified it by a "confused " back about 9  posts if you'd care to look. . Yeah, keep painting ME as a  problem. . That works great.. Nev