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Old 17th Jul 2011, 09:54 PM   #1
Shadow
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How do you solve this?

Im ****in terrible at math. Is this **** hard for anyone else?

Judy had a number of raisins. After eating one, she gave half the remainder to her sister. After eating another raisin, she gave a third of what was left to her brother. Judy now had only six raisins left. How many raisins did she start with?
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Old 17th Jul 2011, 10:03 PM   #2
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She has six.
She gave a third of what she had left before having six. That means she kept two thirds of what she had left. If six is two thirds, one third is three.
She had nine before giving to her brother.
She had ten before eating one.
She gave half to her sister. She kept the other half. A half is ten.
She had twenty before giving half to her sister.
She had twenty one before eating one.

She had twenty one raisins total.
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Old 17th Jul 2011, 10:09 PM   #3
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I see it as:
-1
1/2
-1
2/3
6

So she had 21 to start with.
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Old 17th Jul 2011, 10:12 PM   #4
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Hmmmmm.
It's a trick question.
You always start off with nothing,
Till some one gives you some.
So the answer is 0
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Old 17th Jul 2011, 10:16 PM   #5
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Quote:
Originally Posted by Darkdrium View Post
She has six.
She gave a third of what she had left before having six. That means she kept two thirds of what she had left. If six is two thirds, one third is three.
She had nine before giving to her brother.
She had ten before eating one.
She gave half to her sister. She kept the other half. A half is ten.
She had twenty before giving half to her sister.
She had twenty one before eating one.

She had twenty one raisins total.
How long did that take you to figure out?

Quote:
Originally Posted by BITE_ME View Post
Hmmmmm.
It's a trick question.
You always start off with nothing,
Till some one gives you some.
So the answer is 0
Now I'm even more confused.
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Old 17th Jul 2011, 10:20 PM   #6
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I don't know, maybe a minute? You have to read everything two or three times to understand it well, so about that time. Then it's figuring out with what to start. In this case since we only have the number at the end, we start with that. Then we work our way back up. I did that while writing it down. Then I went over it twice before posting.
Maybe five minutes max including writing.
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Old 17th Jul 2011, 10:21 PM   #7
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Would the answer be 34 for this question?

Which number is the next logical number in the following sequence of numbers: 2, 6, 14, 30, ..
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Old 17th Jul 2011, 10:23 PM   #8
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Would the answer be 34 for this question?

Which number is the next logical number in the following sequence of numbers: 2, 6, 14, 30, ..
62. It's always twice the previous number + 2, n -> 2*n + 2

Last edited by Benfica; 17th Jul 2011 at 10:24 PM.
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Old 17th Jul 2011, 10:23 PM   #9
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62
How does it come to that?
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Old 17th Jul 2011, 10:30 PM   #10
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Just translate the text into a formula, not that ****in hard.

Code:
((x-1)/2-1)(2/3)=6            6   3   18
			      - x - = -  = 9
         /(2/3) /(2/3)        1   2   2

((x-1)/2-1)     =9
        +1       +1
(x-1)/2         =10
     x2          x2
x-1             =20
 +1              +1
x               =21
Of course, you don't really have to do that. Just work backwords in your head and it takes like 10 seconds to figure it out.

Last edited by SleepyHe4d; 17th Jul 2011 at 10:33 PM.
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Old 17th Jul 2011, 10:38 PM   #11
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Quote:
Originally Posted by Benfica View Post
62. It's always twice the previous number + 2, n -> 2*n + 2
So easy I'm embarrassed now.
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Old 17th Jul 2011, 10:38 PM   #12
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Quote:
Originally Posted by Shadow View Post
How does it come to that?
2x(2+1)=6
2x(6+1)=14
2x(14+1)=30
2x(30+1)=62

PS.Why are we doing your math homework?
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Old 17th Jul 2011, 10:52 PM   #13
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Quote:
Originally Posted by BITE_ME View Post
2x(2+1)=6
2x(6+1)=14
2x(14+1)=30
2x(30+1)=62

PS.Why are we doing your math homework?
It's an IQ test and these math questions are driving me crazy. It sickens me how bad I am at math. I'm not cheating I just wanna know the answers for personal knowledge.
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Old 17th Jul 2011, 10:58 PM   #14
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Now try solving 48 / 2(9+3).

One of the most controversial expressions on the internet. The cause of more arguments than airplanes on a conveyor belt.
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Old 17th Jul 2011, 11:00 PM   #15
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HOW THE **** DID YOU ALL SOLVE THAT?????!??!!?
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Old 17th Jul 2011, 11:14 PM   #16
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Quote:
Originally Posted by Twisted Metal View Post
Now try solving 48 / 2(9+3).

One of the most controversial expressions on the internet. The cause of more arguments than airplanes on a conveyor belt.
You're joking right? There's no argument there, there are simple rules to follow.

The truly ****ed up arguments come from 0.999 repeating = 1.0

Last edited by SleepyHe4d; 17th Jul 2011 at 11:18 PM.
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Old 17th Jul 2011, 11:19 PM   #17
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Judy had a number of raisins. X

After eating one, X -1

she gave half the remainder to her sister. (x-1) / 2

After eating another raisin ((x-1) / 2 ) - 1

, she gave a third of what was left to her brother. (2 (((x-1) / 2 ) - 1)) / 3


Judy now had only six raisins left. How many raisins did she start with?

(2 (((x-1) / 2 ) - 1)) / 3 = 6
(((x-1) / 2 ) - 1) = 9

(x-1) / 2 = 10
(x-1) = 20
x= 21
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Old 17th Jul 2011, 11:44 PM   #18
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Quote:
Originally Posted by Twisted Metal View Post
Now try solving 48 / 2(9+3).

One of the most controversial expressions on the internet. The cause of more arguments than airplanes on a conveyor belt.
2
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Old 17th Jul 2011, 11:46 PM   #19
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Quote:
Originally Posted by Twisted Metal View Post
Now try solving 48 / 2(9+3).

One of the most controversial expressions on the internet. The cause of more arguments than airplanes on a conveyor belt.
There is nothing to solve because there is no equation. Problem Solved!
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Old 18th Jul 2011, 12:01 AM   #20
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Originally Posted by dotnetbeast View Post
HOW THE **** DID YOU ALL SOLVE THAT?????!??!!?
it's funny because black people are bad at math
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