|
See my hint to another responder.
Brent
|
|
|
|
|
dbrenth wrote: the answer was 5! five factorial. Unless you were yelling at them.
|
|
|
|
|
dbrenth wrote: Can you please explain it to him?
Dear Teacher,
dbrenth is a cocky little so and so, who needs to be taken down a peg or two.
|
|
|
|
|
And marked down for not completing the solution.
|
|
|
|
|
You teacher was right, and told you the correct result was actually 76 .
Could you please tell us why?
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
|
|
|
|
|
I thought the answer was 78.
|
|
|
|
|
42.
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
|
|
|
|
|
Octal
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
|
|
|
|
|
Bravo!
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
|
|
|
|
|
If you solve it left-to-right, ignoring precedence order, then the answer is 5. An old TI calculator would give you that answer. Today's windows calculator will not: it says 120 because the multiplication is done first.
"They have a consciousness, they have a life, they have a soul! Damn you! Let the rabbits wear glasses! Save our brothers! Can I get an amen?"
|
|
|
|
|
"5!" = 120
It's a clever nerdy riddle. I like it!
I wonder if I'd have been hassled after math class for giving such an answer?
and I just noticed that Microsoft Excel doesn't recognize factorials.
|
|
|
|
|
And today you learn that nobody likes a smartarse ...
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
|
|
|
|
|
OriginalGriff wrote: nobody likes a smartarse
Maybe he should brace himself for the reactions to come?
If you can't laugh at yourself - ask me and I will do it for you.
|
|
|
|
|
Quote: smartarse
I'm owning that.
Brent
|
|
|
|
|
Very clever
cheers
Chris Maunder
|
|
|
|
|
The teacher was not embarrassed but shocked that any student could be so wrong. The division MUST be carried out before the subtraction. 230 – 220 × 0.5 = 230 – 110 = 120. Try it in any scientific calculator or programming language. You are alone (I hope) in thinking the answer is 5. Are you perhaps joking?
|
|
|
|
|
As with a few readers, you missed the ! after the 5.
Brent
|
|
|
|
|
this is excellent!
|
|
|
|
|
That pesky little exclamation mark...
|
|
|
|
|
Oh, come on! I immediately saw that: 5!=120
|
|
|
|
|
Is it because you are saying 5! (factorial). 230 - 220 x 0.5 = 230 - 110 = 120 which is == 5x4x3x2x1 or 5!.
|
|
|
|
|
Your answer is wrong, but not because of maths but because of your English usage. Your intention is to say the answer is 5 factorial in which case your first sentence would end with:
"and announced that the answer was 5!."
However, by leaving off the period, the exclamation mark ends the sentence, which means you are actually saying the answer is 5.
I realize leaving off the period was deliberate to make the trick work, but it's inaccurate, and we are all engineers here
|
|
|
|
|
|
|
Actually, your teacher realized you are more intelligent than him and he was embarrassed about that so he tried to cover for it by saying you were wrong.
I wouldn't try to stick it to him or prove your correctness I would just let it go. There is really no point in upsetting the guy who gives you your final grade.
|
|
|
|