# The Naked Scientists Forum

### Author Topic: Simple Math Problem! ...  (Read 3197 times)

#### ariel

• Sr. Member
• Posts: 359
##### Simple Math Problem! ...
« on: 24/03/2006 22:42:05 »
Solve this as quick as you can in your head!

Take 1000. Add 40.Add another 1000. Add 30. 1000 again Plus 20. Plus 1000. And plus 10. What is the total ?

ariel

#### another_someone

• Guest
##### Re: Simple Math Problem! ...
« Reply #1 on: 24/03/2006 23:29:38 »
quote:
Originally posted by ariel

Solve this as quick as you can in your head!

Take 1000. Add 40.Add another 1000. Add 30. 1000 again Plus 20. Plus 1000. And plus 10. What is the total ?

Depends upon your interpretation of language.

The simplest interpretation would to be assume pure addition throughout, which amounts to 4100.

On the other hand, the word 'take' at the beginning could be interpret as a subtraction, giving you only 2100.

The third '1000' does not even specify whether addition or subtraction is to be performed, and thus one take an arbitrary view that this should be another subtraction, which would amount to a mere 100.

Not sure what this is all meant to prove.

Incidentally, it is easier if you calculate it in a two pass operation, with the smaller numbers summed from right to left, rather than left to right.

George
« Last Edit: 24/03/2006 23:34:07 by another_someone »

#### sharkeyandgeorge

• Guest
##### Re: Simple Math Problem! ...
« Reply #2 on: 25/03/2006 21:57:11 »
toting it up in my head i took it as 4100 on the first glance i would go back and observe anothers probably well observed and valid points but i cant be arsed im gonna guess the point is were supposed to get all confused and say 5000 am i right?

"your not paranoid if they're really after you"

#### ariel

• Sr. Member
• Posts: 359
##### Re: Simple Math Problem! ...
« Reply #3 on: 26/03/2006 23:58:04 »
wow george...
you put quite a lot of thought into it...
haha
as sharkeyandgeorge said: the point is were supposed to get all confused and say 5000
but..i guess that i was the only one who was fooled by it at first...

ariel

#### sharkeyandgeorge

• Guest
##### Re: Simple Math Problem! ...
« Reply #4 on: 30/03/2006 11:24:05 »
ahh tis alright ariel i used to work in a bookies and had to get mental arithmatic right first time but it is the type of problem many would fall for

J.B.S Haldane on the perforated eardrums which were a consequence of his pressure experiments "the drum generally heals up; and if a hole remains in it, although one is somewhat deaf, one can blow tobacco smoke out of  the ear in question, which is a social accomplishment".

#### arch_angel

• First timers
• Posts: 3
##### Re: Simple Math Problem! ...
« Reply #5 on: 21/04/2006 11:27:56 »
maths is ****
can u help me on geography

SGT arch_angel

#### arch_angel

• First timers
• Posts: 3
##### Re: Simple Math Problem! ...
« Reply #6 on: 24/04/2006 14:23:39 »
your all a bunch of scientific ****s.. lol.. i hate you all.. and get a girlfriend or something...  lol or a boyfriend...   ****S!!!!

SGT arch_angel

#### The Naked Scientists Forum

##### Re: Simple Math Problem! ...
« Reply #6 on: 24/04/2006 14:23:39 »