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Old Feb 8, 2008, 07:47 PM   #1
Frisco
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Can anyone get this tricky math problem?

Just for fun, not for class. I can't get it.

Good luck with this and have fun! This is a 5th grade math problem.
If you can't stand word math problems, just delete now. If you can open the
spreadsheet, you'll see it's a very small list of people who have gotten
the correct number. This is not a trick question. This is a real math
problem so don't say that a bus has no legs.


There are 7 girls in a bus

Each girl has 7 backpacks

In each backpack, there are 7 big cats

For every big cat there are 7 little cats

Question: How many legs are there in the bus?


The number of legs is the password to unlock the Excel sheet. (Do not have to spell out #)
If you open it.

Spreadsheet
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Last edited by Frisco; Feb 8, 2008 at 07:56 PM.
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Old Feb 8, 2008, 07:51 PM   #2
mactastic1971
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Spam Anyone ???

This is sketchy!
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Old Feb 8, 2008, 07:52 PM   #3
Frisco
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Quote:
Originally Posted by mactastic1971 View Post
This is sketchy!
Dude no spam here!
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Old Feb 8, 2008, 07:53 PM   #4
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Easy
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Old Feb 8, 2008, 07:53 PM   #5
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Answer this question honestly...

If you were a spammer, and somebody asked you if you were a spammer would you reply, "no I am not a spammer" ?
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Old Feb 8, 2008, 07:55 PM   #6
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Originally Posted by mactastic1971 View Post
Answer this question honestly...

If you were a spammer, and somebody asked you if you were a spammer would you reply, "no I am not a spammer" ?
I have been a member since 2002 and just start spamming now? Answer the question or move on
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Old Feb 8, 2008, 07:57 PM   #7
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I got 9604.

7 girls x 7 backpacks x 7 big cats = 343 big cats x 7 little cats = 2401

2401 x 4 legs each = 9604

...but it's wrong.

EDIT: forgot the girls. 2401 + 7 = 2408 x 4 = 9632 ...but that's wrong too!
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Old Feb 8, 2008, 08:00 PM   #8
mactastic1971
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Originally Posted by EricNau View Post
I got 9604.

7 girls x 7 backpacks x 7 big cats = 343 big cats x 7 little cats = 2401

2401 x 4 legs each = 9604

...but it's wrong.

EDIT: forgot the girls. 2401 + 7 = 2408 x 4 = 9632 ...but that's wrong too!
girls have 2 legs - not four
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Old Feb 8, 2008, 08:00 PM   #9
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The answer is 10990

7 girls * 2 legs each = 14 legs

7 backpacks per girl = 49 backpacks
7 large cats per backpack = 343 large cats = 1372 legs on the large cats

7 small cats per large cat = 2401 small cats = 9604 legs in the small cats.

Total legs = 9604+1372+14 = 10990
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Old Feb 8, 2008, 08:02 PM   #10
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Plus 14 girl legs.

edit: uhh, as the above said.
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Old Feb 8, 2008, 08:06 PM   #11
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Quote:
Originally Posted by swiftaw View Post
The answer is 10990

7 girls * 2 legs each = 14 legs

7 backpacks per girl = 49 backpacks
7 large cats per backpack = 343 large cats = 1372 legs on the large cats

7 small cats per large cat = 2401 small cats = 9604 legs in the small cats.

Total legs = 9604+1372+14 = 10990
Thank you so much!!! I would have never gotten it.

ps: No spam here
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Old Feb 8, 2008, 08:07 PM   #12
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I don't see why this is at all hard. It seems very simple to me.

7 girls --> 14 legs
7x7 = 49 backpacks
49x7 = 343 big cats --> 1372 legs
343x7 = 2401 little cats --> 9604 legs
14+1372+9604 = 10990 legs in total
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Old Feb 8, 2008, 08:08 PM   #13
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That was easy
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Old Feb 8, 2008, 08:12 PM   #14
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Quote:
Originally Posted by mactastic1971 View Post
girls have 2 legs - not four
Looks like I also forgot to account for the big cat's legs. That's what I get for talking on the phone while doing a math problem, I suppose.


But what about the bus driver?
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Old Feb 8, 2008, 08:27 PM   #15
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Quote:
Originally Posted by dobbin View Post
I don't see why this is at all hard. It seems very simple to me.

7 girls --> 14 legs
7x7 = 49 backpacks
49x7 = 343 big cats --> 1372 legs
343x7 = 2401 little cats --> 9604 legs
14+1372+9604 = 10990 legs in total
Well it was very hard for me. I was never good at math.

ps: I was multiplying in the wrong order: Big cats--little cats really confused me.
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Old Feb 8, 2008, 08:53 PM   #16
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That puzzle sounds like yet another variation on this classic, thought to have originated in 1650 BC!

How 'bout this puzzle? -

A bookshelf has three encyclopedia volumes: A-I, J-R, and S-Z. They are in the usual order, left to right on the shelf. The covers are 1/16" thick. Each book has pages numbered 1 to 1000. Each sheet of paper is 1/250 of an inch thick.

If a bookworm chews its way from page 1 of the A-I volume through page 1000 of the S-Z volume, how far did it travel?

(You may decide whether or not the bookworm ate the starting page and the ending page; use whichever assumption makes your computation easier.)
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Old Feb 8, 2008, 08:56 PM   #17
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Quote:
Originally Posted by Doctor Q View Post
That puzzle sounds like yet another variation on this classic, thought to have originated in 1650 BC!

How 'bout this puzzle? -

A bookshelf has three encyclopedia volumes: A-I, J-R, and S-Z. They are in the usual order, left to right on the shelf. The covers are 1/16" thick. Each book has pages numbered 1 to 1000. Each sheet of paper is 1/250 of an inch thick.

If a bookworm chews its way from page 1 of the A-I volume through page 1000 of the S-Z volume, how far did it travel?

(You may decide whether or not the bookworm ate the starting page and the ending page; use whichever assumption makes your computation easier.)
6.25 inches
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Old Feb 8, 2008, 09:05 PM   #18
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6.25 inches
Maybe I'm miss-reading the problem, but wouldn't it be 12.25 inches?
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Old Feb 8, 2008, 09:16 PM   #19
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Maybe I'm miss-reading the problem, but wouldn't it be 12.25 inches?
Nope, how many pieces of paper needed to make 1000 pages?
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Old Feb 8, 2008, 09:28 PM   #20
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Nope, how many pieces of paper needed to make 1000 pages?
Well, if you think like me, 1000.
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Old Feb 8, 2008, 09:36 PM   #21
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Quote:
Originally Posted by Doctor Q View Post
If a bookworm chews its way from page 1 of the A-I volume through page 1000 of the S-Z volume, how far did it travel?
2.25".

Last edited by Nermal; Feb 8, 2008 at 10:21 PM. Reason: made a stupid mistake
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Old Feb 8, 2008, 09:42 PM   #22
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That would be 12.25"

There are 3000 pages total, 1000 for each of the 3 books.
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Old Feb 8, 2008, 09:43 PM   #23
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That would be 12.25"

There are 3000 pages total, 1000 for each of the 3 books.
how many pieces of paper needed to make 1000 pages?
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Old Feb 8, 2008, 10:11 PM   #24
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Quote:
Originally Posted by swiftaw View Post
6.25 inches
Agreed.

1000 pages = 500 sheets. 1 page on one side, 1 page on the other.
The worm chews through 500 sheets in the A-I book, then the cover.
It then chews through the J-R front cover, 500 sheets, and the back cover.
Then the S-Z cover, 500 sheets, and it stops dead.
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Old Feb 8, 2008, 11:02 PM   #25
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how many pieces of paper needed to make 1000 pages?
500....
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