Maths question

J-Hisaishi · Posted: Wed Dec 14, 2005 6:37 am Post subject: Maths question

Person A walk in to shop X, he bought a product priced 25 dollars, he pay the shop X owner 100 dollars, the owner dont have correct change, he took the 100 dollars cash and went to shop Y to exchange to smaller notes. Shop X owner then gave 75 dolloars change back to Person A. After person A left, Shop Y owner came back advise the 100 dollars note is fake, under no argument Shop X owner pay back Shop Y owner 100 dollars real cash.

The question is how much did shop owner X lost during this incident?
*Assume the cost for that product is also 25 dollars.

Concinnity · Posted: Wed Dec 14, 2005 6:39 pm Post subject:

well i guess he didn't really lose any money..... but lost $25 worth of the product....

....?!?!

CCJc · Hmmm... Joined: 20 Sep 2005 Posts: 971

hahahaha, man shop A needs a new cash register

whats funny is...

Why would shop X give 75 back to person A if he already broken down that value from shop Y?

Shop X lost 200 bucks of course

100 from the fake money, = 75 real money return to Person A + 25 for product (lost of income)

100 given to Shop Y

Aikurushii_Lulu · Posted: Wed Dec 14, 2005 7:04 pm Post subject:

O_o maths is stupid Very Happy

Concinnity · Posted: Wed Dec 14, 2005 7:10 pm Post subject:

hm ur answer seems correct.....

i think it's right.......

transistor · Posted: Wed Dec 14, 2005 7:32 pm Post subject:

what r u guys talking about? i've got the missing money! Razz

Concinnity · Posted: Wed Dec 14, 2005 7:50 pm Post subject:

......

elatin · Posted: Wed Dec 14, 2005 9:17 pm Post subject:

the owner of shop x lost $175

this is a trick question...

transistor · Posted: Wed Dec 14, 2005 11:37 pm Post subject:

hint: the way you guys do the maths are a bit wrong Wink

try using coins and see :p

CCJc · Hmmm... Joined: 20 Sep 2005 Posts: 971

chocohi · Mega Forum Addict! Joined: 09 Sep 2005 Posts: 524

Y shop lost 100 dollars (because its fake money)

Person A gets product as well as $75 of real money (doesnt loose anything. except for fake cash)

X shop gained 25 dollars (from Y shop)

so in the end, X shop gets his money worth of what he sold to customer A, therefore he didnt loose anything. but Y shop has the fake money so he looses $100

X gains 25 out of selling product.

Aihiro · Posted: Thu Dec 15, 2005 3:31 am Post subject:

maths.... NO!!!!!!!!! Shocked

J-Hisaishi · Posted: Thu Dec 15, 2005 5:20 am Post subject:

J-Hisaishi · Posted: Thu Dec 15, 2005 5:21 am Post subject:

J-Hisaishi · Posted: Thu Dec 15, 2005 5:22 am Post subject:

J-Hisaishi · Posted: Thu Dec 15, 2005 5:24 am Post subject:

J-Hisaishi · Posted: Thu Dec 15, 2005 5:28 am Post subject:

Guys and gals, this is a primary shcool math question, believe it or not, more than 80% of kid answer it correct, but more than 80% "smarty" answer it wrong. This is a maths question, no tricks. Rolling Eyes

Concinnity · Posted: Thu Dec 15, 2005 10:27 am Post subject:

hmmm......

he loses $75?

elatin · Posted: Thu Dec 15, 2005 10:40 am Post subject:

trying to not overcomplicate...so yeah....$75?

Concinnity · Posted: Thu Dec 15, 2005 10:45 am Post subject:

mind u, i was doing it all in my head......

my answer seems logical, not sure if it's right... haha

elatin · Posted: Thu Dec 15, 2005 10:52 am Post subject:

okay yeah, lots of thinkning and $75 seems pretty right because, there's nothing saying that he didn't have say another $100 note

Talangor · Newbie Joined: 24 Sep 2005 Posts: 42 Location: Sydney

Sounds to me like he lost $125
Umm, so if you get this right it means yor NOT intelligent? Rolling Eyes

elatin · Posted: Thu Dec 15, 2005 11:04 am Post subject:

oh gosh i haven't thought about maths since my extension 1 hsc exam hahaha but i've pondered some more [had my brohter think about it too] and we came up with $125...

Concinnity · Posted: Thu Dec 15, 2005 11:04 am Post subject:

huh? 125? explain.....

double huh?

elatin · Posted: Thu Dec 15, 2005 11:13 am Post subject:

ARGH! frustrating! i retract my $125 answer and stick with $75...even though my friends are insisting the nswer is $100

transistor · Posted: Thu Dec 15, 2005 11:34 am Post subject:

hint 2: at some point, you have to "reverse" the calculation

try coins, or think how much money is in the scenario Razz

Concinnity · Posted: Thu Dec 15, 2005 11:39 am Post subject:

.........?transistor - what's UR answer?

transistor · Posted: Thu Dec 15, 2005 11:50 am Post subject:

my answer is....

100

coz the $100 is fake

elatin · Posted: Thu Dec 15, 2005 11:50 am Post subject:

er...why do you need to involve coins?

Santa · Posted: Thu Dec 15, 2005 11:55 am Post subject:

Either $125 or $150

$150 if you include the fact X has lost a further $25 from not being able to obtain a real $25 from a future customer wishing to purchase that product.

edit: Might just be me, but is this primary school question worded using primary school grammar? The incorrect grammar complicates the problem.

trick question answer: The answer is that primary school kids should concentrate less on maths and more on English.