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More ways to get Braingle...

Pen & Paper I

Trick brain teasers appear difficult at first, but they have a trick that makes them really easy.

 

Puzzle ID:#35301
Fun:*** (2.55)
Difficulty:*** (2.68)
Category:Trick
Submitted By:calmsaviorAus******

 

 

 



You will need a working pen and a sheet of paper for this one. Orient the paper into landscape form, and write this on the paper:

620 = 3000

Your challenge: Add only two lines to make the equation valid.

You cannot:
Cross the equation sign to obtain a "not-equal" sign.
Fold the paper in any way.
Draw any curves.
Place any decimal points.
Place any middle dots (for multiplication).
Use "000" as a distinct number.



Answer

Draw a slash between the 6 and the 20, and another slash between the second and third zeroes of the 3000.
You should have 6/20 = 30%.

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Comments

peanutAza*
Feb 13, 2007

Great teaser... I missed it though

Why the landscape orientation? (or was that just to confuse me? - it worked!)
karenokupniakus*
Feb 13, 2007

Tricky indeed. Wouldn't the second slash go between the third and fourth zero in the 3000 to make "300/0"? I wouldn't have gotten it in any event, but "30/00" doesn't say anything to me.
campfirecutieAus*
Feb 13, 2007

I didn't get it but had fun trying. Math was never my strong point.
scallioAus*
Feb 13, 2007

karenokupniakus- he meant the slash should go between the 2nd and 3rd zeros of the 3000. You're figuring int he zero in the 620.

I hate it when I need the hint, but there was no way I was solving this without it! Very good teaser!
LeonRes-Evil2*us*
Feb 13, 2007

you could also put a < sign above the =, making 620 less than or equal to 3000. Two lines, and it works!
calmsaviorAus*
Feb 13, 2007

i think that would only work if it was 620 - 3000.
Skydragonus*
Feb 13, 2007

Excellent teaser this is one of the best in a while
notsosmart111Aie*
Feb 13, 2007

I like it but it wasn't that hard!
Sand-Storm*us
Feb 13, 2007

very good job. missed it but was fun trying.
vlermaAus**
Feb 13, 2007

Very nice job. Was out of my data base but it was fun trying.
vlermaAus**
Feb 13, 2007

Very nice job. Was out of my data base but it was fun trying.
vlermaAus**
Feb 13, 2007

oops! Sorry
lukeschettAus*
Feb 14, 2007

The hint didn't help me.
Lady_LaniApr*
Feb 14, 2007

yay I got it right!
calmsaviorAus*
Feb 15, 2007

Also, LeonRes-Evil2, it says "equation", not "inequality".
mommydyanneph
Feb 15, 2007

Got it! Twas fun but not too hard. Thanks though!
sugarnspice4u7*us*
Feb 16, 2007

you slash the 62 with one line and the other number with 1 line
0=000
true
luv2sing101*us*
Feb 19, 2007

wow! i thought i had tryed all methods but not that one! good one!!!!!!!!!
SnowloversAus*
Feb 23, 2007

62/0=300/0
0=0
also works
calmsaviorAus*
Feb 24, 2007

Anything divided by 0 does not produce a definitive value. It is illegal in mathematics to divide by 0.
(user deleted)
Feb 24, 2007

Correct me if I am wrng, but could you not just cross out the noumbers there and put 1 on each side?
(user deleted)
Feb 24, 2007

Correct me if I am wrong, but could you not just cross out the noumbers there and put 1 on each side?
(user deleted)
Feb 24, 2007

sorry for my double post( now a triple post I guess) but I tried to correct my spelling after I hit add coment, and posted twice. Sorry.
calmsaviorAus*
Feb 24, 2007

thats four lines
brudork*
Feb 25, 2007

How is this trick?????????????????????????????????
crossrAca
Feb 25, 2007

One thing I'm surprised none of you have mentioned, you could simply use two lines to write an "X" beside the 620, and that would make it valid. (620X=3000)
LeafFan4life*
Mar 02, 2007

ohhh my solution was to just put the variable X beside 620 so it is

620x=3000 so x can equal anything because it is a variable in this case x=4.84 which would also make my statement true
katiejaynAau*
Mar 06, 2007

I sort of got the answer - but it said you couldn't use dots "in the middle" to multiply - I used it to get effectively the same answer:

6/20 = .3000 (which is 30%)

I didn't think you had to use both strokes, and by the way the question was framed it seemed that it was okay to use the dot in a non-multiplication sense.

Seeing the final two zeroes as part of a % sign was difficult, though.
calmsaviorAus*
Mar 06, 2007

It also says no decimal points can be drawn.
lav4geniy*us*
Mar 06, 2007

Great teaser! Loved it! Though I didn't get it...
hersheyuggetAmx*
Mar 07, 2007

it also works if you put< over the equals sighn to make it less than or eaqual too
dididaAus*
Mar 18, 2007

I thought that it was 620x!
squishysqueakAus*
Mar 29, 2007

i didnt figure it out but very nice!
mixed_masteressAph
Apr 24, 2007

The hint totally gave it away. From then it wasn't hard. >=D. GREAT TEASTER!
IluvDepp_Bloom**
May 15, 2007

I'm really bad at math, so that was kind of hard!
mosca*us*
Aug 21, 2007

Verrrry tricky! But neat!
Lord_HawkAsx*
Oct 04, 2009

Brilliant hint
nachosnachostus
Oct 23, 2009

Funny Teaser!
MusiK*
Dec 27, 2009

tricky tricky tricky
jordy56*us*
Jun 16, 2010

i got it right
dangerouspie101tus*
Jun 15, 2012

this should be going in math
extremebluenesscus*
Aug 23, 2013

62/0 = 300/0

(infinity = infinity)



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