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Math Help - maths problem

  1. #1
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    maths problem

    There are 7 girls on 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?
    Last edited by mr fantastic; January 14th 2009 at 05:29 AM. Reason: Garbled post
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  2. #2
    Member TheMasterMind's Avatar
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    Quote Originally Posted by Blademaster View Post
    There are 7 girls on a bus
    Each girl has 7 backpacks
    In each backpack, there areThere are 7 girls on 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?
    7 big cats
    For every big cat there are 7 little cats

    Question: How many legs are there in the bus?
    (7)(7)(7)=343 (girls)(backpacks)(big cats)

    (343)(7)=2401 (big cats)(little cats)

    total cats=2744 (343)+(2401)

    (7)(2)=14 (girls)(legs)

    (2744 cats)(4 legs)=10976+14(girls legs)=10990 total legs
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  3. #3
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    Smile

    there are 10990 legs in the bus..

    there are 7 girls so there is 14 legs 7*2

    each girl has 7 bags
    in each bag there are 7 cats so there is 28 legs
    each cat has 7 kittens so 7*7=49 * 4legs= 196 legs
    196 + 28 legs=224 * 7 bags = 1568
    1568 * 7 girls = 10976
    10976 + 14legs(girls) = 10990..
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  4. #4
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    Hello, Blademaster!

    This is simple Counting . . .


    There are 7 girls on 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?

    There are 7 girls.
    . . They have: .  7 \times 2 \,=\,{\color{blue}14\text{ legs.}}

    There are: .  7\times 7 \,=\,49 backpacks.

    There are: . 49 \times 7 \,=\,343 big cats.
    . . They have: . 343 \times 4 \,=\,{\color{blue}1372\text{ legs.}}

    There are: . 343 \times 7 \,=\,2401 little cats.
    . . They have: . 2401 \times 4 \,=\,{\color{blue}9604\text{ legs.}}


    Add them up . . .



    Usually, this is given as a trick queston.
    You might add two more legs for the bus driver.
    .
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